DISCOVERY #MINDBLOWNToy DIY Bionic Hand - Build Your Own Robot Hand, Construction Set, Robotics Kit for Kids and Teens - Science Kit, for Kids - 87 Pcs DIY Hydraulic Cyborg Hand Kit

Good toy, a bit hard for my 9 year older kid to put together so he needed help.

Looked ideal for Grandson education.

A real good toy to help younger children in learning dexterity skills. My only issue was these are difficult to put together.Maybe making the parts bigger may help the younger children.

This DIY bionic hand kit has been a decent project for my child to work on. The concept of building a hydraulic robot hand is very engaging and educational. The instructions were relatively clear, and the 87 pieces provided a good challenge. My child enjoyed the process of assembling the different components and seeing how the hydraulic system made the fingers move. However, some of the smaller parts were a bit fiddly to put together, and we needed to provide some assistance. The finished product is functional, but it feels a little delicate and might not withstand rough play. It is a good kit, but not perfect.

This was a thoroughly engaging project from start to finish. The kit contains a lot of pieces, and the instructions are purely pictorial, so it requires careful attention to detail to ensure everything goes in the right place. The plastic parts feel strong and snap together cleanly. The most interesting part was filling the hydraulic tubes with water and bleeding out the air bubbles. Once assembled, the hand is surprisingly large and articulated. Operating the syringe controls to move the fingers is fascinating and provides a brilliant, hands-on demonstration of hydraulic principles. The building process itself was just as rewarding as the finished product. A fantastic challenge.

The product itself is good. I did have to help my son make it (9yrs). My main complaint is that there is one critical part missing so one finger will not work.

This is one of those kits that actually lives up to the “educational” label without being dull or overcomplicated. The instructions are fairly clear, though younger kids will probably need a bit of adult help during the trickier parts of assembly. Once built, the hand feels sturdier than expected and moves fluidly thanks to the hydraulic system — no batteries needed, which is a plus.I like that you can choose to build either a left or right hand, depending on preference. The range of movement isn’t massive, but it’s more than enough to get a feel for how hydraulics work in practice. The included targeting light is a small but neat addition, and does make it feel more like a proper gadget than just a toy.Everything slotted together well and nothing felt cheap. It’s ideal for ages 8+ as stated, though probably best for the 10+ range if they’re building it solo. Once finished, it actually makes for a nice display piece too.Overall this gets 5 stars from me because it's really engaging, well-made, and genuinely educational with a good balance between fun and learning.

I built this hydraulic hand during a weekend workshop in my loft and found the process both educational and tactile. Each pulley and piston clicked together with satisfying precision, and the targeting light at the base added a fun tech twist. Once assembled, flexing the fingers demonstrated basic hydraulics in motion—ideal for sparking real-world engineering talks. Assembly took patience, but the end result held together well under studio lights.