These seats fits all MZ & MZ-T Husqvarna ZTR mowers. They are very comfortable. Have an adjustable slide that allows the user to slide the seat forward or backward for a comfortable ride. They have a 11″ (front to back) x 11.25″ (side to side), 5/16-18 x 1 mounting studs. They have a 2 prong saftey switch. MSRP of new seat is 637.99.