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- USA
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
GraviTrax Junior - Starter Set SmallThe GraviTrax Junior Small Starter Set is the perfect introduction to the exciting world of marble runs. Designed especially for younger builders, this compact set offers everything needed to start creating fun, gravity powered tracks. With easy to handle components and a simple design, children can experiment, explore, and learn about motion, direction, and cause and effect in an engaging, hands on way. Ideal entry point for young children new to the
The GraviTrax Junior Small Starter Set is the perfect introduction to the exciting world of marble runs. Designed especially for younger builders, this compact set offers everything needed to start creating fun, gravity-powered tracks. With easy-to-handle components and a simple design, children can experiment, explore, and learn about motion, direction, and cause-and-effect in an engaging, hands-on way.
- Ideal entry point for young children new to the GraviTrax Junior range.
- Encourages problem-solving, creativity, and early STEM learning.
- Simple, intuitive parts make building easy and rewarding.
- Helps develop fine motor skills, concentration, and spatial awareness.
- Compatible with all GraviTrax Junior sets for future expansion.
- Provides hours of imaginative, screen-free learning fun.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 795 reviews
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Product Reviews
★★★★★ 5
Awesome quality
Color: White, Color: White
Take your time installing! It comes with all the instructions and templates. Make sure you’re screwing this into solid wood. I would not recommend you hang your expensive PC from a particle board table.
My Pc fits in well and it’s compatible with a ton of different sizes. Mine has been mounted under my desk for about 6 months and is rock solid. I will say, mine is balancing in there. If I don’t have it at its center of gravity, it could tip out. You can adjust it with the various screw holes but make sure you mount it into something solid.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Fantasic under-desk mounting solution for gaming PC
Color: White
This item comes with an incredible amount of tools and guides for making you successful in mounting your desktop PC under the desk. I am very impressed with the quality of the materials and also the quality of documents included. It feel very sturdy using the included hardware.
I would recommend this item for anyone wanting to free up desktop space!
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Reviewed in the United States on March 27, 2026
★★★★★ 5
PC holder that looks great and works on large PCs for easy under desk mounting
Color: Black
After a lot of research and trial and error I finally found the Heavy Duty Under Desk PC Holder. It is the only under desk PC holder that looks good and is able to hold my HP Omen 45L where I want it - under my desk. Putting it together is relatively easy as was the installation to the desk. No messing with cables or round steel tubes to get the job done.
The metal is solid, the black powder coating looks great, and the installation hardware is a;l there including a drill bit, hex key, and wrench. You just need to bring a screw driver for the wood screws to attach it to your desk.
Read the instructions and make sure you take the depth of your PC into account when attaching the PC holder to your desk, especially if you have a standing desk with motors.
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Reviewed in the United States on October 16, 2025
★★★★★ 4
Quality Holder
Color: White
Very quality holder and very sturdy and stable. I purchased it back in April, and it has been holding up nicely. I would definitely say that it is worth the price. I love that it's adjustable, so if I ever decide I want to new PC case, I can still use it (as long as it fits the dimensions of the holder). Putting it together and mounting it was simple. The only reason I'm giving 4 stars is that it did not come with screws, and I had to purchase some. I hope that has been changed since then.
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Reviewed in the United States on October 12, 2025
★★★★★ 5
Fantastic engineering
Color: White, Color: White
Awesome holder. Follow the directions. This appears to be German manufactured and very well thought out. Great having my rig off my desk - more room for my second monitor!
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Reviewed in the United States on April 7, 2026