Discover the fascinating world of mechanics and build your own robotic arm with the KidzRobotix Robotic Arm. It can grab, lift and drop objects, so it's a perfect tool for learning how robotics and anatomy works. The Robotic Arm needs two AAA batteries to operate (sold separately). Building this kit improves creative thinking, so it can also be used as a part of STEM learning. And it comes with assembly instructions to help you piece it together.