---
product_id: 83968378
title: "Ravensburger GraviTrax Hammer - Add On Extension Accessory Marble Run and Construction Toy For Kids Age 8 Years Up - STEM"
brand: "ravensburger"
price: "$22.78"
currency: USD
in_stock: true
reviews_count: 8
category: "Ravensburger"
url: https://www.desertcart.us/products/83968378-ravensburger-gravitrax-hammer-add-on-extension-accessory-marble-run-construction
store_origin: US
region: United States of America
---

# Compact 19x19x4.8 cm design Boosts STEM & spatial skills Innovative interactive track system Ravensburger GraviTrax Hammer - Add On Extension Accessory Marble Run and Construction Toy For Kids Age 8 Years Up - STEM

**Brand:** ravensburger
**Price:** $22.78
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your marble run game with unstoppable momentum!

## Quick Answers

- **What is this?** Ravensburger GraviTrax Hammer - Add On Extension Accessory Marble Run and Construction Toy For Kids Age 8 Years Up - STEM by ravensburger
- **How much does it cost?** $22.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/83968378-ravensburger-gravitrax-hammer-add-on-extension-accessory-marble-run-construction)

## Best For

- ravensburger enthusiasts

## Why This Product

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

## Key Features

- • **Ready, Set, Build!:** Clear, easy-to-follow instructions get you constructing and racing in minutes—no downtime, just play.
- • **STEM-Powered Playtime:** Engage critical thinking and engineering skills while having fun with gravity and magnetism.
- • **Seamless Expansion Compatibility:** Effortlessly combine with all GraviTrax sets and expansions to build endlessly unique tracks.
- • **Perfect Gift for the Curious Mind:** Ideal for ages 8+, this brain-boosting toy is a must-have for young innovators and future engineers.
- • **Unleash Velocity with the GraviTrax Hammer:** Add thrilling speed and kinetic energy to your marble runs for next-level excitement.

## Overview

The GraviTrax Hammer by Ravensburger is a compact, STEM-focused marble run accessory designed for kids 8 and up. It enhances your existing GraviTrax track with added velocity and kinetic action, promoting spatial reasoning and engineering skills. Fully compatible with all GraviTrax sets and expansions, it offers endless creative possibilities and comes with clear instructions for quick setup.

## Description

From the manufacturer Whether GraviTrax or GraviTrax PRO, the Starter-Sets offer everything to get started right away – a pack full of possibilities and creativity. Can be combined with ALL GraviTrax products. With the numerous GraviTrax extensions you have even more possibilities to make your track unique! Can be combined with ALL GraviTrax products. Only playable with a Starter-Set. Even more action! Make your track more exciting with the extensions from GraviTrax & GraviTrax Pro.

Review: Good accessory - Grandson is happy with it
Review: Happy Grandson! - Delivery was very quick, and my grandson is enjoying the different Gravitrax items, including this one.

## Features

- Warning:Toy inside. Adult supervision recommended
- As seen on TV - GraviTrax is an innovative marble run and contruction toy for boys and for girls ages 8 years and up. It is an ideal christmas gift or birthday gift for smart, curious kids. The GraviTrax Hammer will add some much-needed velocity to your track layout.
- Innovative - The GraviTrax interactive track system allows you to design and build your own race tracks and experiment with engineering, gravity, magnetism, and kinetics to propel your ball to the finish.
- Infinitely Expandable - Gravitrax in fully expandable with a large range of expansion pack and accessories! An amazing building toy!
- Develops critical skills – Playing and building with GraviTrax builds spatial reasoning and planning skills, and provides a great stealth learning experience.
- Clear instructions – Comes with clear instructions so that you can start construction and start playing with this fun brain game within minutes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B7MWQ1Z |
| Age Range Description | 8 years |
| Age range (description) | 8 years |
| Best Sellers Rank | 143,287 in Toys & Games ( See Top 100 in Toys & Games ) 195 in Marble Runs |
| Brand | Ravensburger |
| Brand Name | Ravensburger |
| Country Of Origin | Germany |
| Customer Reviews | 4.4 out of 5 stars 951 Reviews |
| Educational Objective | Construction Skills, STEM Skills, Imagination |
| Educational objective | Construction Skills, STEM Skills, Imagination |
| Global Trade Identification Number | 04005556275984 |
| Included Components | 1x Set of Instructions, 1x Hammer Base, 1x Long Rail, 2x Medium Rails, 3x Short Rails |
| Item Dimensions | 19 x 19 x 4.8 centimetres |
| Item Weight | 0.16 Kilograms |
| Item dimensions L x W x H | 19 x 19 x 4.8 centimetres |
| Manufacturer | Ravensburger |
| Manufacturer Part Number | 27598 |
| Manufacturer Warranty Description | No Warranty |
| Material | card |
| Material Type | card |
| Maximum Age Recommendation | 1188.0 |
| Minimum Age Recommendation | 96.0 |
| Model Number | 27598 |
| Set Name | GraviTrax Hammer |
| Size | 19 cm x 19 cm x 4.8 cm |
| Theme | STEM |
| Unit Count | 1.0 count |

## Product Details

- **Age range (description):** 8 years
- **Brand:** Ravensburger
- **Item dimensions L x W x H:** 19 x 19 x 4.8 centimetres
- **Material:** card
- **Size:** 19 cm x 19 cm x 4.8 cm

## Images

![Ravensburger GraviTrax Hammer - Add On Extension Accessory Marble Run and Construction Toy For Kids Age 8 Years Up - STEM - Image 1](https://m.media-amazon.com/images/I/71c4CxQbbDL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good accessory
*by C***G on 10 January 2019*

Grandson is happy with it

### ⭐⭐⭐⭐⭐ Happy Grandson!
*by M***L on 16 March 2019*

Delivery was very quick, and my grandson is enjoying the different Gravitrax items, including this one.

### ⭐⭐⭐⭐ good product
*by E***A on 3 January 2019*

product works well and easy to use with Gravitrax starter kit

## Frequently Bought Together

- Gravitrax Ravensburger Hammer Accessory (Marble Run And Stem Toy), Multi-Colour, 8 +, 27598-4
- Ravensburger Gravitrax Magnetic Cannon Accessory - Marble Run & Stem Toy For Boys & Girls Age 8 & Up - Accessory For 2019 Toy Of The Year Finalist Gravitrax
- GraviTrax Ravensburger Starter Kit (Marble Run And Stem Toy), Multi Colour, 8+, 27597, age: 8 years and up

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-27*