Thames & Kosmos Mega Cyborg Hand helmet and swim in the river

and swim in the river

75 inches and is ultra soft as well as machine washable

No mittens required

Features a slot with a metal rim for sliding your child's change into

Thames & Kosmos Mega Cyborg Hand helmet and swim in the riverExplore hydraulics, pneumatics, and robotics with your very own GIANT hydraulic hand! Using over 200 plastic pieces and piston tubes that you fill with water, build an awesome mechanical hand that uses hydraulic power to simulate the movements of the human hand no motors or electricity required! Once assembled, your cyborg hand slips onto your own hand like a glove, with mechanical fingers that you operate with your own fingers and that can grip