Handle is a robot that combines the rough-terrain capability of legs with the efficiency of wheels. It uses many of the same principles for dynamics, balance, and mobile manipulation​ found in the quadruped and biped robots we build, but with only 10 actuated joints, it is significantly less complex. Wheels are fast and efficient on flat surfaces while legs can go almost anywhere: by combining wheels and legs, Handle has the best of both worlds.   Handle can pick up heavy loads while occupying a small footprint, allowing it to maneuver in tight spaces.  All of Handle’s joints are coordinated to deliver high-performance mobile manipulation.