johnco cybot hydraulic cyborg handBuild your own Hydraulic Cyborg Hand and experience the fun of a cyborg world! The Hydraulic Cyborg Hand simulates the movements of a human hand using hydraulic power for mechanical transmission without electricity. It allows every finger joint to adjust at different angles for a precisely closed fist or open palm. You can use different grip techniques to hold a variety of items, such as bottles, balls or tiny screws, making it an interesting and fun