We’ve really got to hand it to Thames & Kosmos: It truly knows how to build fans of STEM.

The Mega Cyborg Hand is one part Frankenstein-esque science experiment, one part learning exercise, and all fun. When kids first open the box, they may be surprised by the five colorful levels of plastic parts. It’s neatly formed — but it also might have people asking how it can possibly turn into a usable toy.

All anxiety is quickly calmed when kids open the experiment manual. It’s a hefty guide that looks more like a comic book or magazine than an instruction sheet. On the very first page, it explains aaaaaaaall of those important pieces and that’s just the beginning — literally.

Related: Scrutinize Specimens Like a Scientist with this STEM Microscope

After a quick introduction for parents — which explains that kids ages 7-9 might need some help, but those ages 10 and up should be able to complete the project on their own — it jumps into a comic which begins the origin story of the Mega Cyborg Hand but is interrupted by the actual directions for the project. Partway through the directions, the first two experiments come up. About seven pages full of directions later the comic comes back — this time when kids’ Mega Cyborg Hand is fully built and it’s officially introduced into the story.

The design of this book alone is worth this kit. No detail is spared and on every page, kids can find facts about why these things are working and tips on how to make their time building go smoother. This isn’t a five-minute activity — it will take time and patience — but the journey is just as enjoyable as the final product.

After the comic, the guide goes into detail on how to move the hand and provides more fun experiments. As for the hand itself, it’s made for one-size-fits-all so there could be some wiggle room, but kids can always grow into it. It’s fun to use it to try picking things up or explore the full range of motion. The thumb can be placed on the left or right side so lefties don’t have to feel left out.

This set is more than just an activity to cure boredom. It teaches kids all about science and how joints work. The theories of pneumatic and hydraulic technology become easily digestible and, more importantly, exciting! Through the various activities and experiments, anyone can have fun and learn some handy facts along the way.

About the author

Nicole Savas

Nicole Savas

As a kid, Nicole either wanted to be a professional toy player-wither or a writer. Somehow, as social media editor for The Toy Insider, The Toy Book, and The Pop Insider, she’s found a career as both. She's grateful to work somewhere that she can fully embrace both her love of teddy bears and her admiration for the Oxford comma. When she's not playing with toys at work, she's playing with her baby girl at home.

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