Name: 🔥Hot Sale🔥Brain Improvement Device for Kids
Brand: 冯志威
Price: 14.99 USD
Availability: InStock

🔥Hot Sale🔥Brain Improvement Device for Kids

Price

~~$29.68~~ $14.99

Save $14.69

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Addition

Subtractive

Multiplication

Division

Fill In The Blanks

🔥Addition + Subtractive (Two Bottles Of Ink)

🔥Multiplication + Division (Two Bottles Of Ink)

👍Addition + Subtractive + Multiplication + Division (4 Roller + 4 Bottles Of Ink)

3 Bottles Of Ink

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Quantity

Global Provision of Services

Free Shipping Over $59.99

Sustainable Manufacturing

PayPal & Credit Card Payment

Description

This Brain Improvement Device Can Help Your Kids Learn Maths With Joy!

Features:

💗Quick and Convenient: With our rotary design, you can easily adjust the column type and choose from 10 different queuing methods and 100 different ways of using the column type. Plus, it's quick-drying and reusable after refilling ink.

💗Save Time and Effort: No more tedious math prep! With our roller stamp, gently scrolling, ccan efficiently and quickly print out math practice questions within 100.

💗All-in-One Device: Our roller stamp covers addition, subtraction, multiplication, and division, making it a versatile tool for any math lesson.

💗Reusable and Durable: Our roller stamp is small, portable, and can be reused after adding ink. The imprint is clear, and the color doesn't fade or smudge.

💗Fun and Interactive Learning: Our adjustable roller stamp make learning math a breeze for kids! They'll love rolling out problems and finding the answers.

Q & A

Q: Will the printed math problems be repeated?

A: The seal can print ten math problems by turning one circle, and needs to be adjusted after one circle, otherwise there will be duplicate questions. It is recommended that the four seals be used alternately to enrich the question types.

Q: Will the ink spill?

A: The ink bottle is airtight and will not leak. We recommend closing the cap of the bottle in time when the ink is not in use to prevent the ink from drying out. A small amount of ink on the printing paper is normal and does not affect the writing effect.

Q: What do these stamps do?

A: Our Math Roller Stamp is not only convenient and fast, but also can cultivate children's logical calculation ability and improve the speed and accuracy of oral calculation. Strengthen the bond between parent/teacher and child.

Specification:

Material: High benzene plastic + rubber
Shape: Rectangular
Weight: 69g
Size: 44*30*48mm
Color: Pink, Blue

Package includes:

1/2/4 PCS x Brain Improvement Device for Kids + 1/2/4 PCS x ink
3 PCS x ink

Click on "ADD TO CART" to get yours now!

Why Us?

We work directly with manufacturers all over the world to ensure the best quality of our products.
We have a Quality Control department which helps us to keep our promise!
Price is always competitive.
Awesome Customer Service
Amazing products along with High Quality

NOTES

Due to manual measurements, please allow slight measurement deviations.
Because the screen is bright and the contrast display is different, the picture and the real thing may have a slight color.there is not clear place can contact our online customer service oh, hope you understand!

You need to know these!

Payment success & send e-mail for your confirmation before shipping.
Please contact us(support@seed-hill.com), if you need assistance.

class SpzSmartBlockComponent extends SPZ.BaseElement { constructor(element) { super(element); this.templates_ = null; this.container_ = null; this.i18n_ = {}; this.config_ = {}; this.show_type_ = 3; this.product_resource_id_ = ''; this.collection_resource_id_ = ''; this.cart_items_ = []; this.customer_id_ = ''; this.order_id_ = ''; } static deferredMount() { return false; } isLayoutSupported(layout) { return layout == SPZCore.Layout.CONTAINER; } buildCallback() { const template_type = window.SHOPLAZZA.meta.page.template_type; if (template_type === 1) { this.show_type_ = 3; this.product_resource_id_ = window.SHOPLAZZA.meta.page.resource_id; } else if (template_type === 2) { this.show_type_ = 4; this.collection_resource_id_ = window.SHOPLAZZA.meta.page.resource_id; } else if (template_type === 15){ this.show_type_ = 5; } else if (template_type === 13){ this.show_type_ = 6; } else if (template_type === 20){ this.show_type_ = 7; this.customer_id_ = window.SHOPLAZZA.customer.customer_id; } else if (template_type === 35){ this.show_type_ = 8; this.order_id_ = window.location.pathname.split('/').pop(); } this.templates_ = SPZServices.templatesForDoc(this.element); this.setAction_(); } mountCallback() { console.log('appzebu smart mounted'); const that = this; const themeName = window.SHOPLAZZA.theme.merchant_theme_name; const isGeek = /Geek/.test(themeName); this.fetchRules().then((res) => { if (res && res.rules && res.rules.length) { const blockEl = document.getElementById('smart_recommend_block'); SPZ.whenApiDefined(blockEl).then((api) => { api.render({data: res}, true).then(() => { if (isGeek && that.show_type_ === 6) { blockEl.querySelector('.plugin_container_wrpper').style.padding = '30px 0'; } const recommendStyle = document.createElement('style'); recommendStyle.innerHTML = ` .plugin__recommend_container,.app-recommend-card { display: none !important; } `; document.head.appendChild(recommendStyle); const fetchList = []; res.rules.forEach((rule) => { fetchList.push(this.fetchRuleProductList(rule.id)); }); const fetchAll = Promise.all(fetchList); fetchAll.then((p_res) => { res.rules.forEach((rule, index) => { rule.products = p_res[index] && p_res[index].products; const ruleEl = document.getElementById('smart_recommend_rule_' + rule.id); SPZ.whenApiDefined(ruleEl).then((api) => { api.render({data: rule}, true).then(() => { that.impressListen(`#smart_recommend_rule_ul_${rule.id}`, function(){ that.trackRuleImpress(rule); }); const btnElList = document.querySelectorAll(`#smart_recommend_rule_ul_${rule.id} button`); btnElList.forEach((btnEl) => { if (btnEl && rule.config && rule.config.quick_shop_button_bg_color && rule.config.quick_shop_button_text_color) { btnEl.style.backgroundColor = rule.config.quick_shop_button_bg_color; btnEl.style.color = rule.config.quick_shop_button_text_color; } }) }); }); }); }); }) }) } else { if (window.top !== window.self) { const template_type = window.SHOPLAZZA.meta.page.template_type; const holderEl = document.getElementById('smart_recommend_preview_no_data_placeholder'); SPZ.whenApiDefined(holderEl).then((api) => { api.render({data: { isCart: template_type === 13, isCollection: template_type === 2, isProduct: template_type === 1, isIndex: template_type === 15 }}, true); }); } } }); } setAction_() { this.registerAction('quickShop', (data) => { const that = this; const product_id = data.args.product_id; const productIndex = data.args.productIndex; const rule_id = data.args.rule_id; const ssp = data.args.ssp; const scm = data.args.scm; const cfb = data.args.cfb; const ifb = data.args.ifb; const modalRender = document.getElementById('smart_recommend_product_modal_render'); if (product_id) { this.fetchProductData(product_id).then((res) => { const product = res.products && res.products.length && res.products[0] || {}; product.cfb = cfb; product.ifb = ifb; SPZ.whenApiDefined(modalRender).then((api) => { api.render({product: product, productIndex: productIndex, rule_id: rule_id, ssp: ssp, scm: scm, show_type: that.show_type_}, true).then(() => { const modalEl = document.getElementById('smart_recommend_product_modal'); SPZ.whenApiDefined(modalEl).then((modal) => { that.impressListen('#smart_recommend_product_modal', function(){ that.trackQuickShop({ rule_id: rule_id, product_id: product_id }); }); modal.open(); }); const formEl = document.getElementById('smart_recommend_product_form'); SPZ.whenApiDefined(formEl).then((form) => { form.setProduct(product); }); const variantEl = document.getElementById('smart_recommend_product_variants'); SPZ.whenApiDefined(variantEl).then((variant) => { variant.handleRender(product); }); }); }) }); } }); this.registerAction('handleScroll', (data) => { this.directTo(data.args.rule_id, data.args.direction); }); this.registerAction('handleProductChange', (data) => { const variant = data.args.data.variant; const product = data.args.data.product; const imageRenderEl = document.getElementById('smart_recommend_product_image'); SPZ.whenApiDefined(imageRenderEl).then((api) => { api.render({ variant: variant, product: product }); }); }); this.registerAction('handleAtcSuccess', (detail) => { const data = detail.args; data.data.product = data.data.product || {}; data.data.variant = data.data.variant || {}; const product_id = data.data.product.id; const product_title = data.data.product.title; const variant_id = data.data.variant.id; const price = data.data.variant.price; const rule_id = data.rule_id; const aid = `smart_recommend.${this.show_type_}.${rule_id}`; const ifb = data.data.product.ifb; const cfb = data.data.product.cfb; const ssp = data.ssp; const scm = data.scm; const spm = `smart_recommend_${this.show_type_}.${data.spmIndex}`; const params = { id: product_id, product_id: product_id, number: 1, name: product_title, variant_id: variant_id, childrenId: variant_id, item_price: price, source: 'add_to_cart', _extra: { aid: aid, ifb: ifb, cfb: cfb, scm: scm, spm: `..${window.SHOPLAZZA.meta.page.template_name}.${spm}`, ssp: ssp, } }; this.tranckAddToCart(params); }); this.registerAction('addATCHook', (data) => { const params = data.args; const spm = `smart_recommend_${this.show_type_}.${params.spmIndex}`; this.myInterceptor_ = window.djInterceptors && window.djInterceptors.track.use({ event: 'dj.addToCart', params: { aid: `smart_recommend.${this.show_type_}.` + params.rule_id, ssp: params.ssp, scm: params.scm, cfb: params.cfb, spm: `..${window.SHOPLAZZA.meta.page.template_name}.${spm}`, }, once: true }); }); } tranckAddToCart(detail) { if (window.$) { window.$(document.body).trigger('dj.addToCart', detail); } } fetchRules() { const payload = { show_type: this.show_type_, }; let that = this; if (this.show_type_ === 6) { let line_items = []; return this.fetchCart().then((res) => { if (res && res.cart && res.cart.line_items) { line_items = res.cart.line_items.map((item) => { return { product_id: item.product_id, variant_id: item.variant_id, quantity: item.quantity, price: item.price } }); } payload.line_items = line_items; that.cart_items_ = line_items; return that.fetchRulesRequest(payload); }); } else { if (this.show_type_ === 3) { payload.line_items = [{ product_id: this.product_resource_id_ }]; } else if (this.show_type_ === 4) { payload.collection_id = this.collection_resource_id_; } else if (this.show_type_ === 7) { payload.customer_id = this.customer_id_; } else if (this.show_type_ === 8) { payload.order_id = this.order_id_; } return this.fetchRulesRequest(payload); } } fetchRulesRequest(payload) { return fetch(window.SHOPLAZZA.routes.root + "/api/possum/recommend_query", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify(payload) }).then(function(res){ if(res.ok){ return res.json(); } }); } fetchCart() { return fetch(`/api/cart/cart-select?r=${Math.random().toString(36).slice(-4)}`) .then((res) => { if (res.ok) { return res.json(); } }); } fetchRuleProductList(rule_id) { const payload = { page: 1, limit: 100, fields: ["title", "url", "image", "min_price_variant.price", "min_price_variant.compare_at_price"], rule_id: rule_id, }; if (this.show_type_ === 3) { payload.line_items = [{ product_id: this.product_resource_id_ }]; } else if (this.show_type_ === 4) { payload.collection_id = this.collection_resource_id_; } else if (this.show_type_ === 6) { payload.line_items = this.cart_items_; } else if (this.show_type_ === 7) { payload.customer_id = this.customer_id_; } else if (this.show_type_ === 8) { payload.order_id = this.order_id_; } return fetch(window.SHOPLAZZA.routes.root + "/api/possum/recommend_products", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify(payload) }).then(function(res){ if(res.ok){ return res.json(); } }).catch(function(err){ console.log(err); }); } fetchProductData(product_id) { return fetch(window.SHOPLAZZA.routes.root + "/api/possum/products", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify({ product_ids: [product_id], fields: [ "images", "options", "min_price_variant", "variants"] }) }).then(function(res){ if(res.ok){ return res.json(); } }).catch(function(err){ console.log(err); const loadingEl = document.getElementById('smart_recommend_loading'); if (loadingEl) { loadingEl.style.display = 'none'; } }); } getStyle(ele, style) { if (!ele) return; if (window.getComputedStyle) { return window.getComputedStyle(ele)[style]; } return ele.currentStyle[style]; } directTo(id, direction) { const scrollElement = document.getElementById(`smart_recommend_rule_ul_${id}`); const blockWidth = parseInt(this.getStyle(scrollElement, 'width')); const scrollLength = (blockWidth * 0.19 - 12) * 5; const scrollPoint = scrollElement.scrollWidth - scrollElement.clientWidth; if (!scrollElement) return; if (direction === 'left') { if (document.dir === 'rtl') { scrollElement.scrollTo({ left: Math.abs(scrollElement.scrollLeft) >= scrollPoint - 100 ? 0 : scrollElement.scrollLeft - scrollLength, behavior: 'smooth' }); return; } scrollElement.scrollTo({ left: Math.max(scrollElement.scrollLeft - scrollLength, 0), behavior: 'smooth' }); } else { if (document.dir === 'rtl') { scrollElement.scrollTo({ left: Math.abs(scrollElement.scrollLeft) >= scrollPoint + 100 ? 0 : scrollElement.scrollLeft + scrollLength, behavior: 'smooth' }); return; } scrollElement.scrollTo({ left: scrollElement.scrollLeft >= scrollPoint - 100 ? 0 : scrollElement.scrollLeft + scrollLength, behavior: 'smooth' }); } } trackRuleImpress(rule) { if (window.sa && window.sa.track) { window.sa.track("plugin_common", { plugin_name: "upsell", event_type: "impressions", rule_id: rule.id, ssp: rule.ssp, scm: rule.scm, show_type: this.show_type_, support_app_block: window.SHOPLAZZA.theme.support_app_block }); window.sa.track("module_impressions", { aid: `smart_recommend.${this.show_type_}.${rule.id}`, support_app_block: window.SHOPLAZZA.theme.support_app_block }); } } trackQuickShop(data) { window.sa && sa.track && sa.track("plugin_common", { plugin_name: "upsell", event_type: "quick_shop", rule_id: data.rule_id, product_id: data.product_id, show_type: this.show_type_, }); } impressListen(selector, cb) { const el = document.querySelector(selector); const onImpress = (e) => { if (e) { e.stopPropagation(); } cb(); }; if (el && !el.getAttribute('imprsd')) { el.addEventListener('impress', onImpress) } else if (el) { onImpress(); } } } SPZ.defineElement('spz-custom-smart-block', SpzSmartBlockComponent);

🔥Hot Sale🔥Brain Improvement Device for Kids

Q & A

Specification:

Why Us?

NOTES

You need to know these!

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