"Increase operator comfort without increasing seat height with this K & M Swivel Pro Seat Swivel plate. May be set to 5 locking positions or allowed to swivel freely. Recommended Use Swivel, Dimensions L x W x H in. 13 1/2 x 13 1/2 x 1 1/2, Water Resistant Yes, Color Black, Mounting Hardware Included Yes, Compatible With Most seats. Heavy-duty construction with powder-coat finish Multiple mounting options"