---
product_id: 632356004
title: "RoboRails STEM Kit, Toy of The Year Winner, Build a Robot Monorail System w/Splitters, Cross Switch, Seesaw Mechanism, Modern-Day Model Train Set, Explore Physics, Gyroscopic Forces"
brand: "thames & kosmos"
price: "$141"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/632356004-roborails-stem-kit-toy-of-the-year-winner-build-robot
store_origin: NZ
region: New Zealand
---

# 3 unique track connectors Motorized gyroscope tech 26+ modular track designs RoboRails STEM Kit, Toy of The Year Winner, Build a Robot Monorail System w/Splitters, Cross Switch, Seesaw Mechanism, Modern-Day Model Train Set, Explore Physics, Gyroscopic Forces

**Brand:** thames & kosmos
**Price:** $141
**Availability:** ✅ In Stock

## Summary

> 🤖 Glide into the future of play with RoboRails — where STEM meets unstoppable fun!

## Quick Answers

- **What is this?** RoboRails STEM Kit, Toy of The Year Winner, Build a Robot Monorail System w/Splitters, Cross Switch, Seesaw Mechanism, Modern-Day Model Train Set, Explore Physics, Gyroscopic Forces by thames & kosmos
- **How much does it cost?** $141 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/632356004-roborails-stem-kit-toy-of-the-year-winner-build-robot)

## 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

- • **STEM Learning Elevated:** Dive deep into physics concepts like angular momentum and acceleration with a vibrant 32-page manual that turns playtime into brainpower.
- • **Award-Winning Innovation:** Join the elite with the 2025 Vehicle of the Year winner—where modern model trains meet next-gen robotics and green transportation insights.
- • **Endless Track Creativity:** Snap together over 180 durable parts to build 26+ track configurations or design your own futuristic monorail routes.
- • **Dynamic Route Engineering:** Incorporate seesaws, splitters, and cross switches to add thrilling twists, turns, and obstacles that challenge your problem-solving skills.
- • **Precision Gyroscopic Balance:** Experience cutting-edge motorized gyroscope tech that keeps your robot steady on one wheel, defying gravity and friction.

## Overview

The Thames & Kosmos RoboRails STEM Kit is an award-winning robotic monorail system featuring a motorized gyroscope that balances the robot on a single wheel. With over 180 snap-together parts, 26+ track designs, and three unique connectors, it offers endless creative building possibilities. The included 32-page manual combines step-by-step assembly with engaging physics lessons on rotational motion and angular momentum, making it a perfect hands-on STEM learning tool for ages 8 and up.

## Description

Thames & Kosmos RoboRails STEM Kit, Toy of The Year Winner, Build a Robot Monorail System w/Splitters, Cross Switch, Seesaw Mechanism, Modern-Day Model Train Set, Explore Physics, Gyroscopic Forces

## Features

- Build a robot that zooms along a monorail track on one wheel thanks to a motorized gyroscope unit with a clever ball-bearing weight system that reduces friction, allowing the robot to stay balanced for longer.
- Taking classic model train sets into the future, kids can quickly and easily reconfigure the snap-together track segments into countless possibilities; assemble the 26 track designs suggested in the manual, or create your own!
- Three unique connectors (the seesaw, (2) 3-way splitters, and a cross switch) add fun twists, turns, and obstacles to your routes!
- The 32-page, full-color illustrated manual elevates this fun building set into a valuable learning tool, providing step-by-step assembly instructions as well as scientific explanations that dive into important physics concepts like rotational motion, acceleration, angular momentum, and more.
- The open-ended design promotes critical thinking and problem-solving skills as well as imagination and creativity.
- The 2025 Vehicle of the Year Award Winner

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 37.59 x 7.62 x 28.7 cm; 861.83 g |
| Manufacturer recommended age | 8 years and up |
| Item model number | 620400 |
| Educational Objective(s) | STEM |
| Number of Game Players | 1 |
| Assembly Required | Yes |
| Batteries Required? | Yes |
| Batteries Included? | No |
| tech_spec_battery_description_toys | Alkaline |
| Material Type(s) | Plastic |
| Color | White and Gray |
| ASIN | B0CRJW2GT8 |

## Product Details

- **Size:** Medium to Large
- **Brand:** Thames & Kosmos
- **Theme:** Robotics
- **Age range (description):** Kid
- **Item dimensions L x W x H:** 37.6 x 7.6 x 28.7 centimeters

## Images

![RoboRails STEM Kit, Toy of The Year Winner, Build a Robot Monorail System w/Splitters, Cross Switch, Seesaw Mechanism, Modern-Day Model Train Set, Explore Physics, Gyroscopic Forces - Image 1](https://m.media-amazon.com/images/I/81kLYmGzFfL.jpg)

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**Shop now:** [https://www.desertcart.nz/products/632356004-roborails-stem-kit-toy-of-the-year-winner-build-robot](https://www.desertcart.nz/products/632356004-roborails-stem-kit-toy-of-the-year-winner-build-robot)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-24*