Powertec Fitness Compact Leg Sled, Black The sled is driven by nylon bearing wheels that provide an ultra-smooth and quiet ride The seat and adjustable back pad along with the adjustable angle foot plate and hand grips lock the user into the perfect position The design of the carriage and seat section allows for a leg sled that is significantly more compact than any other in its class Weight capacity: Sled Carriage: 700 lbs. A foot tube is also included to provide calf raises