Billy Goat Self-Propelled Dethatcher, Rental is designed to efficiently clear matted thatch from your turf with 20-inch passes. Built with a rugged design to withstand demanding use, this dethatcher features a down sweep rotation that propels the flails forward, making it self-propelled and reducing operator fatigue. d to other power rakes, it has a slightly heavier build, including steel guards, heavier wheels, premium bearings, and a 10-gauge steel engine base. This construction absorbs much of the vibration before it reaches the handle, enhancing both comfort and handling for the operator. for those looking to maintain their lawn with ease and durability. Model Number: PR550H