Friendly Robotics RL1000 RoboMower 21-Inch Automatic Cordless Electric Lawn Mower and Docking Station Robotic lawn mower and docking station; touch-sensitive bumpers and theft-deterrent system 5-1/2 horsepower engine, 21-inch deck; set to run on own (at specified time) or using manual controller Durable plastic and steel construction Includes sealed batteries and charge pack This item is not for sale in Catalina Island