Durafit Seat Covers, Insulated Lawn Tractor Seat Covers for 18 inch wide, one piece tractor seat. One piece 18 inches wide tractor seat covers in insulated two layers for comfort This is the basic tractor seat on many ride on mowers and tractors. 2 sets. one in the wash If your seat have armrests and does not fold forward, this cover will not work. Cover is two layers, outer twill and inner fleece to wick the moisture away from you. Take the heat out of that black vinyl seat. Machine washable, quick installation for ease of use.