Build your own mechanical hand, slip it on like a glove, and get a grip, without motors or electricity. It uses hydraulic power to simulate the movement of a human hand, and is adjustable for any hand size! A 40-page full-color manual is included.
From Thames & Kosmos, for ages 7 yrs-teen.
Watch the Video:
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.