This Original Grammer Multi-Adjust Air Suspension Tractor Seat is perfect for farm tractors. Replace your old, worn-out mechanical suspension seat with 4in. of air suspension for a soft ride on any surface. 3in. height adjustment and 8 1/4in. fore-and-aft slide-rail adjustment provide comfort and versatility. Adjustable armrests and extendable, foldable, lumbar-supporting backrest provide extraordinary support. 12V self-contained compressor keeps air pressure just right. Durable cloth cover provides a comfortable surface. Capacity: 285 lbs. 25.88in.W x 22.74in.D x 29.31in.H. U.S.A.