---
product_id: 289943556
title: "Thames & Kosmos SpringBots STEM Kit | Build 3 Spring-Powered| Race car, Walking Robot, Countdown Timer Powered by a Mainspring | Learn About Potential & Kinetic Energy, Gears & Springs, Black"
brand: "thames & kosmos"
price: "$301387"
currency: COP
in_stock: true
reviews_count: 10
category: "Thames & Kosmos"
url: https://www.desertcart.co/products/289943556-thames-and-kosmos-springbots-stem-kit-build-3-spring-powered
store_origin: CO
region: Colombia
---

# 6-minute countdown timer 130+ precision parts 60 ft race car range Thames & Kosmos SpringBots STEM Kit | Build 3 Spring-Powered| Race car, Walking Robot, Countdown Timer Powered by a Mainspring | Learn About Potential & Kinetic Energy, Gears & Springs, Black

**Brand:** thames & kosmos
**Price:** $301387
**Availability:** ✅ In Stock

## Summary

> ⚙️ Wind Up Your Curiosity, Power Up Your Play!

## Quick Answers

- **What is this?** Thames & Kosmos SpringBots STEM Kit | Build 3 Spring-Powered| Race car, Walking Robot, Countdown Timer Powered by a Mainspring | Learn About Potential & Kinetic Energy, Gears & Springs, Black by thames & kosmos
- **How much does it cost?** $301387 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/289943556-thames-and-kosmos-springbots-stem-kit-build-3-spring-powered)

## Best For

- thames & kosmos enthusiasts

## Why This Product

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

## Key Features

- • **Master Mechanical Energy:** Explore potential & kinetic energy through hands-on assembly and real motion.
- • **3-in-1 Engineering Marvel:** Build a race car, walking robot, and countdown timer—all spring-powered, no batteries needed.
- • **Eco-Friendly Power Source:** Mainspring technology revives classic clockwork mechanics for sustainable STEM fun.
- • **Precision Snap-Together Design:** 130+ parts with easy, glue-free assembly guided by a full-color 64-page manual.
- • **Engage & Educate Across Generations:** Perfect for quality bonding time while sparking curiosity in engineering and physics.

## Overview

The Thames & Kosmos SpringBots STEM Kit lets you build three spring-powered machines—a race car that zooms up to 60 feet, a walking robot, and a 6-minute countdown timer—using over 130 snap-together parts. Designed for ages 6-14, this battery-free kit teaches core physics concepts like potential and kinetic energy through hands-on mechanical engineering, guided by a detailed 64-page manual.

## Description

Build a motorized robot, race car, and countdown timer — all that run without any batteries or electrical power! The secret behind these fascinating machines is a power source called a mainspring — a spiral-shaped spring that stores up energy when wound up by hand, and then converts that stored energy back into motion when it discharges. The mainspring inside the robot turns gears which enable it to march forward on two legs. The race car zooms across the floor as its mainspring uncoils and turns its wheels. The countdown timer uses a more complex system of springs, gears, ratchets, and linkages to slowly tick down the seconds as it discharges — for a countdown of up to six minutes. As you assemble these models one at a time from over 130 pieces, you will learn about the inner workings of spring-powered devices like wind-up toys and ticking mechanical clocks. Discover the physics concepts of potential and kinetic energy as you experiment with your spring-powered machines. Easy, snap-together assembly requires no glue. The kit includes step-by-step illustrated instructions.

Review: Fun and challenging gift for a 7- 8-year-old boy - My grandson love putting the springbots together and the best thing is they don't take any batteries to run
Review: Great educational toy. Very well built. - I bought this to assemble with my 8 and 9 year old Grand Daughters. My goal was to introduce them to mechanical and energy producing devises. I also wanted them to see the thought: creativity and engineering that goes into creating movement and energy. They were very interested and thanked me for explaining the various ways energy is produced with today’s technology and the ways energy was produced years ago. We live far apart from each other and we only get to see them about 5 times a year and this was quality time spent together

## Features

- 3-in-1 engineering kit: Assemble three cool robots, wind them up, and watch them go--no batteries required!
- The models are powered by a mainspring, the main device found in old-fashioned clocks.
- Models include a race car that drives up to 60 feet, a robot that walks up to 20 inches, and a countdown timer that counts down up to 6 minutes.
- Learn about potential and kinetic energy and how gears and springs function in different mechanical devices.
- Includes a 64-page, full-color manual with clear language, simple step-by-step illustrated instructions, and scientific explanations.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08TVY3JHL |
| Best Sellers Rank | #247,315 in Toys & Games ( See Top 100 in Toys & Games ) #2,375 in Educational Science Kits |
| Customer Reviews | 4.3 4.3 out of 5 stars (96) |
| Item Weight | 14.4 ounces |
| Item model number | 550038 |
| Manufacturer | Thames & Kosmos |
| Manufacturer recommended age | 6 - 14 years |
| Product Dimensions | 10 x 2.5 x 11 inches |
| Release date | June 8, 2021 |

## Images

![Thames & Kosmos SpringBots STEM Kit | Build 3 Spring-Powered| Race car, Walking Robot, Countdown Timer Powered by a Mainspring | Learn About Potential & Kinetic Energy, Gears & Springs, Black - Image 1](https://m.media-amazon.com/images/I/81IymhZQFeL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fun and challenging gift for a 7- 8-year-old boy
*by D***R on October 5, 2025*

My grandson love putting the springbots together and the best thing is they don't take any batteries to run

### ⭐⭐⭐⭐⭐ Great educational toy. Very well built.
*by D***I on April 28, 2023*

I bought this to assemble with my 8 and 9 year old Grand Daughters. My goal was to introduce them to mechanical and energy producing devises. I also wanted them to see the thought: creativity and engineering that goes into creating movement and energy. They were very interested and thanked me for explaining the various ways energy is produced with today’s technology and the ways energy was produced years ago. We live far apart from each other and we only get to see them about 5 times a year and this was quality time spent together

### ⭐⭐⭐⭐ One of the Best STEM Kits Available
*by C***2 on December 23, 2022*

The Thames & Kosmos SpringBots STEM Kit is one of the best STEM kits available. There are easy to follow instructions to build 3 different spring activated toys. Not only does the builder learn from putting the models together, but also will learn about springs and how they work in making things run. This is a fun set that anyone 10+ can do with or without adult supervision. The only negative that I have for this set is that only one model can be completed, and then the parts have to be taken apart and used for the other models. There are a bunch of extra pieces laying around when each model is completed, so you have to find someplace to keep them secure and not lost between model constructions. Also, my 11 year old built one, and then stopped. He didn't want to take the first one apart to build any others. Once his favorite was built, he had no interest in destroying it and building the next. Maybe your kids will be different.

## Frequently Bought Together

- Thames & Kosmos SpringBots STEM Kit | Build 3 Spring-Powered| Race car, Walking Robot, Countdown Timer Powered by a Mainspring | Learn About Potential & Kinetic Energy, Gears & Springs, Black , 10 x 2.5 x 11 inches
- Thames & Kosmos Mega Cyborg Hand STEM Experiment Kit | Build Your Own GIANT Hydraulic Amazing Gripping Capabilities Adjustable for Different Sizes Learn Pneumatic Systems
- Thames & Kosmos SolarBots: 8-in-1 Solar Robot STEM Experiment Kit | Build 8 Cool Solar-Powered Robots in Minutes | No Batteries Required | Learn About Solar Energy & Technology | Solar Panel Included

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co/products/289943556-thames-and-kosmos-springbots-stem-kit-build-3-spring-powered](https://www.desertcart.co/products/289943556-thames-and-kosmos-springbots-stem-kit-build-3-spring-powered)

---

*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-03-05*