---
product_id: 131822011
title: "Joytech 3.93'' (100mm) Diameter Spinning Top Base K9 Crystal Glass Concave Mirror, Great High End Transparent Surface Double Concave Top Accessory DZ04"
brand: "joytech"
price: "1079592₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/131822011-joytech-3-93-100mm-diameter-spinning-top-base-k9-crystal
store_origin: VN
region: Vietnam
---

# Extended spin time Concave mirror design K9 optical glass Joytech 3.93'' (100mm) Diameter Spinning Top Base K9 Crystal Glass Concave Mirror, Great High End Transparent Surface Double Concave Top Accessory DZ04

**Brand:** joytech
**Price:** 1079592₫
**Availability:** ✅ In Stock

## Summary

> ✨ Spin into the Future with Joytech!

## Quick Answers

- **What is this?** Joytech 3.93'' (100mm) Diameter Spinning Top Base K9 Crystal Glass Concave Mirror, Great High End Transparent Surface Double Concave Top Accessory DZ04 by joytech
- **How much does it cost?** 1079592₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/131822011-joytech-3-93-100mm-diameter-spinning-top-base-k9-crystal)

## Best For

- joytech enthusiasts

## Why This Product

- Trusted joytech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Educational Fun:** Engage young minds with the principles of light reflection while playing.
- • **Crafted for Quality:** Made from premium K9 optical glass, ensuring a flawless, scratch-free surface.
- • **Risk-Free Enjoyment:** Enjoy peace of mind with a free replacement guarantee within 6 months of purchase.
- • **Elevate Your Spin Game:** Experience unparalleled stability with the innovative concave mirror design.
- • **Spin Longer, Play Harder:** Reduce friction and resistance for extended spin times, maximizing your fun.

## Overview

The Joytech 3.93'' Spinning Top Base features a unique concave mirror design made from high-quality K9 optical glass, enhancing stability and extending spin times. Ideal for both play and educational purposes, this accessory combines fun with learning about light reflection principles.

## Description

Joytech 3.93'' (100mm) Diameter Spinning Top Base K9 Crystal Glass Concave Mirror, Great High End Transparent Surface Double Concave Top Accessory DZ04

## Features

- CONCAVE MIRROR ---- The top and bottom is concave, this prevents the top from leaving the base as it spins, and you get a great game experience, and when the top spin on the base, can find the center much faster. FREE REPLACEMENT IF DAMGE WITHIN 6MONTHS.
- RAPID STATIC ---- When your gyro works on this base, it helps the gyro get into a stable and quiet state more quickly, once it settles down, it looks like it's "frozen" motionless in place.
- HIGH QUALITY ---- The base is made of K9 optical glass, smooth surface, no defects, chamfered edges, no burrs to prevent hand scratches. Apply to spinning top.
- EXTEND TOP SPIN TIME ---- Experiments have shown that when the top is working on a smooth surface, it can extend the spin time, reduce bottom friction, and reduce resistance.
- OPTICAL EDUCATION ---- The principle of concave mirror is reflection imaging, has the effect of focusing light source, it demonstrates the law of light reflection. The children were curious about it.This is not only a base, but also a knowledge point that children need to learn.

## Images

![Joytech 3.93'' (100mm) Diameter Spinning Top Base K9 Crystal Glass Concave Mirror, Great High End Transparent Surface Double Concave Top Accessory DZ04 - Image 1](https://m.media-amazon.com/images/I/61XBaPJi08L.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- Joytech 3.93'' (100mm) Diameter Spinning Top Base K9 Crystal Glass Concave Mirror, Great High End Transparent Surface Double Concave Top Accessory DZ04
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**Shop now:** [https://www.desertcart.vn/products/131822011-joytech-3-93-100mm-diameter-spinning-top-base-k9-crystal](https://www.desertcart.vn/products/131822011-joytech-3-93-100mm-diameter-spinning-top-base-k9-crystal)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-14*