---
product_id: 381823873
title: "STEM Builder Toys Kit|3D Educational Construction Engineering Building Blocks for Boys and Girls Ages 3 4 5 6 7 8 9 10 Years Old|Best Puzzle Toy Gift for Kids"
brand: "rainbow toyfrog"
price: "₨25046"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/381823873-stem-builder-toys-kit-3d-educational-construction-engineering-building-blocks
store_origin: LK
region: Sri Lanka
---

# Vibrant multi-color set 6.48cm compact blocks 699g sturdy build STEM Builder Toys Kit|3D Educational Construction Engineering Building Blocks for Boys and Girls Ages 3 4 5 6 7 8 9 10 Years Old|Best Puzzle Toy Gift for Kids

**Brand:** rainbow toyfrog
**Price:** ₨25046
**Availability:** ✅ In Stock

## Summary

> 🧠 Build brilliance block by block — don’t let your kid miss out!

## Quick Answers

- **What is this?** STEM Builder Toys Kit|3D Educational Construction Engineering Building Blocks for Boys and Girls Ages 3 4 5 6 7 8 9 10 Years Old|Best Puzzle Toy Gift for Kids by rainbow toyfrog
- **How much does it cost?** ₨25046 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/381823873-stem-builder-toys-kit-3d-educational-construction-engineering-building-blocks)

## Best For

- rainbow toyfrog enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Engaging Gift:** Non-toxic, durable ABS material with vibrant colors kids love and parents trust.
- • **STEM Skills in Action:** Boosts critical thinking, spatial intelligence & problem-solving from age 3+.
- • **Portable Brain-Boosting Fun:** Compact, lightweight kit perfect for learning at home, school, or on the go.
- • **Screen-Free Play Revolution:** Encourages hands-on learning and cognitive growth beyond digital distractions.
- • **Endless Creative Possibilities:** Unique interlocking design sparks limitless 3D builds and imagination.

## Overview

RAINBOW TOYFROG STEM Builder Toys Kit is a vibrant, durable 3D construction set designed for children ages 3 to 10. Crafted from safe ABS plastic, it promotes STEM learning by enhancing creativity, spatial reasoning, and problem-solving skills through hands-on play. Lightweight and portable, it’s ideal for home, classroom, or travel, making it the perfect educational gift that inspires screen-free cognitive development.

## Description

Wonderful Brain Puzzle Game for kids. Grow your mind, develop spatial thinking skills, and enjoy the fun of a great brain challenge with the 3D STEM building blocks. Hours of fun, Develops creativity, problem solving, spatial intelligence. Great for children and adults. High quality, sturdy design. Educational Learning Puzzle or Fun 3D Toy?This brain teaser learning toy for kids is great to use in the home, in the classroom, and while traveling.Best Christmas Gift or Birthday Present.This geometric puzzle block toy is a wonderful gift for kids that encourages them to put aside their video games and devices for a while and build critical thinking skills. This is a learning toy that can engage them in car rides, plane rides, summer time, and anytime you want to encourage intellectual development.

## Features

- FUN, PRODUCTIVE PLAY - We believe in empowering children to boost creative learning and brain development. Our unique engineering set helps kids develop mental muscles through interactive play! Supports logical thinking, cognitive system development and reasoning. Perfect for preschool, kindergarten classrooms, and up.
- BUILD YOUR BRAIN –unique interlocking design means there are endless possibilities for building and creating. Simply squeeze these blocks together to start building, then pull them apart to create something new.
- SUPPORTS STEM EDUCATION - Designed to enhance your children's Science, Technology, Engineering, and Math skills. Improve your kids' imagination and creativity by challenging them to build their own cars, animals, robots and anything they can imagine! Our educational building blocks grow with your child, too!
- DEVELOP SKILLS –Empower your child with the skills needed for a bright and successful future.Our toys are designed to flex mental muscles and put the cognitive parts of the brain to work promoting development of critical thinking, reasoning and problem solving skills!
- GIFT A TOY THAT SAFE & FUN. Colorful, Engaging Set Makes a Wonderful Birthday or Christmas Gift for Boys or Girls. Engineering Toys Stimulate Problem Solving,Fine Motor Skills & Shape Recognition; Perfect kids indoor activities,come with carry case, easy for storage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 6.48 x 1.5 x 1.5 cm; 699 g |
| Manufacturer recommended age | 3 years and up |
| Item model number | K-130 |
| Educational Objective(s) | Construction Skills |
| Number of Game Players | 1 |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries Included? | No |
| tech_spec_battery_description_toys | No batteries required |
| Material Type(s) | Acrylonitrile Butadiene Styrene |
| Color | [Multi] |
| ASIN | B086GFL8SZ |

## Images

![STEM Builder Toys Kit|3D Educational Construction Engineering Building Blocks for Boys and Girls Ages 3 4 5 6 7 8 9 10 Years Old|Best Puzzle Toy Gift for Kids - Image 1](https://m.media-amazon.com/images/I/81+g1FK9rBL.jpg)

## Frequently Bought Together

- RAINBOW TOYFROG STEM Builder Toys Kit|3D Educational Construction Engineering Building Blocks for Boys and Girls Ages 3 4 5 6 7 8 9 10 Years Old|Best STEM Activities for Kids Ages 3-5.
- RAINBOW TOYFROG Star Flex STEM Building Toys - 70 Connector Blocks for Kids with Tote - Kindergarten STEM & Preschool Table Top Toys - Open Ended Building Blocks for Boys and Girls 3 Years Old & Up
- KUTOI Snap n Twist Building Toys - Wocky Blocks - 80 Piece STEM Snap Cubes for Preschool & Elementary School, Tactile Sensory Toys for Boys & Girls, Ages 3+

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**Shop now:** [https://www.desertcart.lk/products/381823873-stem-builder-toys-kit-3d-educational-construction-engineering-building-blocks](https://www.desertcart.lk/products/381823873-stem-builder-toys-kit-3d-educational-construction-engineering-building-blocks)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-26*