Advertising Disclosure Add Ons Expansions Comparison - October 2025
7 Best Add Ons Expansions In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.9Exceptional | 2 Best Value  9.8Exceptional | 3  9.7Exceptional | 4  9.6Exceptional | 5  9.5Excellent | 6  9.3Excellent | 7  9.2Excellent |
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ModelRavensburger GraviTrax Trax Expansion Pack - Add On Extension Accessory Marble Run, STEM and Construction Toy For Kids Age 8 Years + | Model Ravensburger GraviTrax Tunnel Expansion Pack Add On Extension Accessory - Marble Run, STEM and Construction Toy For Kids Age 8 Years and Up | Model Ravensburger GraviTrax Bridges Expansion Pack Add On Extension Accessory - Marble Run and Construction Toy For Kids Age 8 Years and Up - STEM | Model Thames & Kosmos Legends of Andor: Dark Heroes Expansion | Add-On for Base Game | Cooperative Fantasy Strategy | Ages 10+ | 2–6 Players | New Characters & Challenges | Model HNVWNSD Magnetic Tiles Expansion Car Buidling Blocks Set, STEM Toys for 3 4 5 6 7 8+ Year Old Girls Boys Magnet Bricks Truck, Magnetic Add-ons with Re-Enforced Hitch and Long Bed for Toddler Ages 3+" | Model StarTech.com 2-Port USB PCIe Card with 10Gbps/port - USB 3.2 Gen 2 Type-A PCI Express 3.0 x2 Host Controller Expansion Card - Add-On Adapter Card - Full/Low Profile - Windows & Linux (PEXUSB312A3) | Model Ravensburger GraviTrax Lift Expansion Pack Add On Extension Accessory - Marble Run and Construction Toy For Kids Age 8 Years and Up |
BrandRavensburger | Brand Ravensburger | Brand Ravensburger | Brand Thames & Kosmos | Brand HNVWNSD | Brand StarTech | Brand Ravensburger |
Reviews | Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews |
Tech Specs | ||||||
product dimensions 33.81 x 5.51 x 33.81 cm 455 g | product dimensions 34.29 x 5.08 x 34.29 cm 650 g | product dimensions 33.8 x 33.8 x 5.5 cm 353 g | product dimensions 14.73 x 4.06 x 29.46 cm 600 g | product dimensions 0.25 x 0.25 x 0.25 cm 310 g | product dimensions 11 x 12 x 1.9 cm 78 g | product dimensions 33.8 x 33.8 x 5.5 cm 549 g |
customer reviews4.9 4.9 out of 5 stars 41 ratings 4.9 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 915 ratings 4.6 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 43 ratings 4.6 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 67 ratings 4.7 out of 5 stars | customer reviews 4.8 4.8 out of 5 stars 46 ratings 4.8 out of 5 stars | customer reviews 3.9 3.9 out of 5 stars 37 ratings 3.9 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 41 ratings 4.5 out of 5 stars |
manufacturer recommended age 8 years and up | manufacturer recommended age 8 years and up | manufacturer recommended age 8 years and up | manufacturer recommended age 5 years and up | manufacturer recommended age 3 years and up | manufacturer recommended age - | manufacturer recommended age 8 years and up |
material type s Plastic, Metal | material type s card | material type s Plastic, Metal | material type s Cardboard, Plastic | material type s Plastic | material type s - | material type s Plastic, Metal |
educational objective s Logical Thinking, Engineering Skills, Problem Solving, Creative Skill, STEM | educational objective s Build, design | educational objective s Critical Thinking, Patience, Problem Solving, Concentration, STEM | educational objective s Decision-making, Cooperation, Puzzle-solving, Planning | educational objective s STEM | educational objective s - | educational objective s Critical Thinking, Patience, Problem Solving, Concentration, STEM |
assembly required No | assembly required No | assembly required No | assembly required Yes | assembly required No | assembly required - | assembly required No |
batteries required No | batteries required No | batteries required No | batteries required No | batteries required No | batteries required - | batteries required No |
color Yellow | color Multicolor | color Yellow | color Multicolor | color - | color Black | color Yellow |
batteries included No | batteries included No | batteries included No | batteries included No | batteries included - | batteries included - | batteries included No |
language English, Romanian | language English, French, German, Spanish, Dutch | language English, Romanian | language English | language - | language - | language English, French |
number of game players- | number of game players 1+ | number of game players - | number of game players 2-6 | number of game players - | number of game players - | number of game players 1 piece |
Available On | Available On | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1RavensburgerRavensburger GraviTrax Trax Expansion Pack - Add On Extension Accessory Marble Run, STEM and Construction Toy For Kids Age 8 Years +
Why we love it
Encourages creative thinking.
Compatible with all GraviTrax sets.
Boosts STEM skills.
Main highlights- The Trax expansion pack includes over 40 components to extend the fun of your GraviTrax with even more tiles and tracks.
- STEM and construction toys for kids age 8 years up. Great Christmas gifts and birthday presents for children.
- GraviTrax is made with premium quality materials adhering to the highest UK and EU standards and regulations.
- Experiment with gravity to power your ball through twists, loops and turns in a race to the finish line – great building game for boys & girls.
- Build new routes and create crazy trick shots, expand the marble run with new ideas, expansion sets to keep the ball rolling – compatible with all GraviTrax & GraviTrax PRO sets & accessories.
- A GraviTrax Starter Set is required to use expansion packs & accessories. No batteries required. Other accessories sold separately.
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9.8
2Ravensburger27% Off
Ravensburger GraviTrax Tunnel Expansion Pack Add On Extension Accessory - Marble Run, STEM and Construction Toy For Kids Age 8 Years and Up
Main highlights- 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
- 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. Create the element of surprise! Use the Tunnels expansion pack hide the marbles as they travel through your track.
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9.7
3Ravensburger
Ravensburger GraviTrax Bridges Expansion Pack Add On Extension Accessory - Marble Run and Construction Toy For Kids Age 8 Years and Up - STEM
Main highlights- STEM TOYS - Experiment with gravity to power your ball through twists, loops and turns in a race to the finish line – great christmas gifts and birthday presents for kids and children age 8 years up.
- PREMIUM QUALITY - GraviTrax is made with premium quality materials adhering to the highest UK and EU standards and regulations.
- GRAVITRAX STARTER SET REQUIRED - A GraviTrax Starter Set is required to use expansion packs & accessories. No batteries required. Other accessories sold separately.
- GRAVITRAX MARBLE RUN - Create the element of surprise! Bypass large gaps with the Bridges expansion pack.
- CONSTRUCTION GAMES - Build new routes and create crazy trick shots, expand the marble run with new ideas, expansion sets to keep the ball rolling – compatible with all GraviTrax & GraviTrax PRO sets & accessories.
Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
