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★★★★★
4,8/5 (3.928+ reviews)

Heat Hollow Build-Your-Own Wooden Robotic Hand STEM Kit

Regular price £99.95 Sale price£29.95 Save 70%
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Free Royal Mail Delivery Within the UK
30-Day Money-Back Guarantee
Only 7 items left in stock!
Royal Mail Free Delivery 30-Day Returns
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EARLY BLACK FRIDAY SALE
UP TO 70% OFF + FREE MYSTERY GIFT 🎁
00DAYS
:
00HRS
:
00MIN
:
00SEC

Build a hand that grips, then discover why it works

One of the most satisfying stem toys for kids aged 8 to 14, this kit lets children construct their own mechanical hand from sturdy engineered wood, following a clear step-by-step manual. As they build, they learn the science behind movement and mechanics, gaining confidence and creativity without a screen in sight. Every part is included, and the maker offers lifetime replacement parts so playtime never grinds to a halt. It has won awards and the approval of STEM educators, and families in more than 30 countries already love it.

Why you'll love it

  • Working mechanical hand: a real super-hero style build that actually moves
  • Step-by-step manual: easy to follow, so kids can build independently
  • Engineered wood: high-quality, safe and built to last
  • Parts for life: lifetime supply of replacement parts included
  • Award-winning: STEM-approved and a Toy of the Year finalist

Perfect for: birthdays, Christmas, school holidays and weekend projects

We offer fast, free delivery with no minimum order value. Every order can be tracked at any time using its own tracking number.

We offer a 30-day right to return or exchange if for any reason you are not satisfied with your order.

The Heat Hollow promise

30-Day Money-Back Guarantee

Try it at home for 30 days. If it doesn't keep you as warm as you hoped, send it back and we'll refund you — no awkward questions.

Every order ships with tracking, and our team is one email away at support@heathollow.com.

No more shivering through winter


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Frequently asked questions

Most of our heaters and warmers give noticeable heat within one to two minutes. Exact times are listed in the product description.

Our heaters are designed with safety features such as overheat protection, and many also have tip-over protection — check the product description for the exact features. Never cover a heater and always follow the instructions.

Mains products come with a UK-compatible plug or adapter. Car products use the standard 12V socket found in UK cars.

Because you only heat the space or person you need, you often use far less energy than heating the whole house. The wattage is shown on every product page.

Yes, you can return items within 30 days after delivery. Contact us at support@heathollow.com and we'll guide you through it.

As soon as your order ships you'll receive a tracking number by email.

We accept major cards, PayPal and Apple Pay. All payments are encrypted and processed securely.

Email us at support@heathollow.com — we usually reply within 2 working days.

Tracked delivery

Every order ships with a tracking number.

30-day returns

Not happy? Send it back within 30 days.

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Friendly support

Real people, quick replies by email.

Build-Your-Own Wooden Robotic Hand STEM Kit
Heat Hollow Build-Your-Own Wooden Robotic Hand STEM Kit
£99.95 £29.95
Christmas Present for Kids Who Ask How Things Work