Love to solve a puzzle. This is a 3D wooden puzzle. you can create an amazing robotic arm using it. This is made by natural birch ply. Materials are recyclable and safe. This is a perfect gift for kids as well as younger people. This 3D wooden puzzle can improve your kids ability to plan and build their own structure like a true engineer. Making a robotic arm using these wooden pieces is great fun for kids. When completely assembled, by pulling and pushing the connected wood rings with your right-hand fingers, the robot fingers move in a realistic grasping motion. It is durable enough to hold your TV remote. Also, you can do some other things such as hand shakes, high fives, fist bumps, beg for something, grip a number of flowers to surprise your mom, your grandma or even your girlfriend. Whatever you want to do with your robotic hand, you are in control.