---
product_id: 450458450
title: "51-in-1 Robot Building Kit - STEM Engineering Projects for Boys 8-12"
brand: "kastwave"
price: "S$40"
currency: SGD
in_stock: true
reviews_count: 8
category: "Kastwave"
url: https://www.desertcart.sg/products/450458450-51-in-1-robot-building-kit-stem-engineering-projects-boys
store_origin: SG
region: Singapore
---

# 3 large buildable models STEM skill booster 700 PCS versatile pieces 51-in-1 Robot Building Kit - STEM Engineering Projects for Boys 8-12

**Brand:** kastwave
**Price:** S$40
**Availability:** ✅ In Stock

## Summary

> 🤖 Build Smarter, Play Cooler – STEM Fun That Levels Up Creativity!

## Quick Answers

- **What is this?** 51-in-1 Robot Building Kit - STEM Engineering Projects for Boys 8-12 by kastwave
- **How much does it cost?** S$40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/450458450-51-in-1-robot-building-kit-stem-engineering-projects-boys)

## Best For

- kastwave enthusiasts

## Why This Product

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

## Key Features

- • **Premium Safe Materials:** Crafted from durable, smooth ABS plastic ensuring safe, burr-free play for kids aged 6 and up.
- • **STEM Learning Made Fun:** Transform complex science and engineering concepts into engaging hands-on projects that sharpen logic and problem-solving.
- • **Seamless Compatibility:** Mix and match with popular STEM brands to expand your building possibilities and spark endless innovation.
- • **Master 51 Unique Models:** Unleash creativity with 51 diverse robot and vehicle builds, including a helicopter and mobile command center.
- • **The Ultimate Gift for Future Innovators:** Inspire confidence and achievement with a gift that combines fun, education, and teamwork.

## Overview

The KASTWAVE 51-in-1 Robot Building Kit offers 700 high-quality ABS pieces to construct 51 different STEM models, including large-scale vehicles like helicopters and command centers. Designed for kids aged 6-15, it enhances hand-eye coordination, logical thinking, and problem-solving skills through engaging, educational play. Compatible with other major STEM sets, this kit encourages limitless creativity and is a perfect gift to ignite a passion for engineering and technology.

## Description

Buy KASTWAVE 51-in-1 Robot Building Kit - STEM Engineering Projects for Boys 8-12 online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Excellent and cheap - Best product as described
Review: Color is difficult for kids - My son like but he found it little complicated because of the color of each piece is Black.. So difficult to found ans recognize different pieces

## Features

- 🎓【51 Models in Total】: 700 PCS of the stem building sets for boys 8-12 can be built into a total of 51 models, including 3 large models of helicopter, black hawk special police, and mobile command center. It is an excellent educational and learning building sets for boys. STEM robot building toys encourage your kids to learn and think, explore the fun of STEM toys, maximize kid’s creativity and hands-on ability.
- 🎓【STEM Educational Toy】: This stem projects for kids ages 6-15 integrates boring or difficult science, technology, engineering and mathematics into funny games. In the splicing process, improve children's hand-eye coordination and hands-on ability, help them develop their brains, exercise their logical thinking and problem-solving skills. Make kids learn more and grow more while experiencing the fun of building.
- 🎓【Compatible Function & Explore Fun】: This robot building kit for kids 6-15 are designed according to common standards, which are compatible with various well-known brands of STEM building toys. Building toys for boys age 6-15 stimulate kids to create more different models by adding more building blocks, help kids to explore different possibilities, and develop kid’s intelligence and improve their spatial imagination in each attempt and breakthrough.
- 🎓【Safe and High-quality Materials】: This erector sets for boys age 6 - 15 are made of high-quality ABS material, which is smooth and burr-free, sturdy and durable. Building toys for 6 + year old boys are equipped with a detailed building instruction to guide kids to assemble models of different shapes step by step, parents and kids no longer worry about not knowing how to build! Let’s enjoy this fun activity of building blocks with parents or friends!
- 🎓【Perfect Gift】: The robot kit for kids have super cool shapes and classic colors. And this building toys for boys 8-12 make kids not only design their own creative works, but also gain a sense of self-achievement in every progress. Assembling building blocks will be a very meaningful stem activity. I believe this toy building sets are definitely great and valuable gift for age 6 - 15 year old boys on birthday or other important holidays.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09Z693GYV |
| Assembly Required | Yes |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #7,548 in Toys ( See Top 100 in Toys ) #472 in Toy Building Sets |
| Color | black |
| Customer Reviews | 4.0 4.0 out of 5 stars (27) |
| Date First Available | 29 April 2022 |
| Educational Objective(s) | Creative Thinking, Hand-Eye Coordination, Logical Thinking, Problem Solving Skills, STEM, Team Building Skills |
| Manufacturer recommended age | 6 years and up |
| Material Type(s) | Acrylonitrile Butadiene Styren |
| Number of Puzzle Pieces | 51 |
| Product Dimensions | 28 x 23 x 4 cm; 700 g |

## Images

![51-in-1 Robot Building Kit - STEM Engineering Projects for Boys 8-12 - Image 1](https://m.media-amazon.com/images/I/81ytJihn2lL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent and cheap
*by A***I on 9 September 2025*

Best product as described

### ⭐⭐⭐⭐ Color is difficult for kids
*by N***Z on 11 April 2025*

My son like but he found it little complicated because of the color of each piece is Black.. So difficult to found ans recognize different pieces

### ⭐ Bad quality
*by M***A on 8 April 2024*

I’m disappointed with this set. The pieces don’t align well, making them difficult to connect securely. There are noticeable gaps between the parts, which has been frustrating for my child. Whenever he manages to attach one piece, another tends to fall apart, leading to a less enjoyable building experience.

## Frequently Bought Together

- KASTWAVE Robot Building Kit for Kids, 51-in-1 Robot Building Kit for Kids STEM Building Toys Erector Set for Boys 8-12 Engineering STEM Projects Construction Building Blocks Toys Gifts for Kids
- STEM Building Toys for Boys Age 8-12, Erector Set Building Blocks for 6-8 Year Old Boys, Educational Build a Robot Truck Kit Compatible with Major Brands for 6 7 8 9 10 12 yl, 700Pcs 51 modles
- Sillbird STEM 13-in-1 Education Solar Robot Toys -190 Pieces DIY Building Science Experiment Kit for Kids Aged 8-10 and Older,Solar Powered by The Sun

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-07*