Constructed of high-density polyurethane molded foam covered with a variety of leather or vinyl coversSelect models feature solar-reflective leather in the seating area and automotive-grade vinyl on the sides; patented process reduces surface temperature by as much as 45°F for a cooler seat, higher durability and longer life over conventional leather or vinylMade in the U.S.A.Feature a heavy steel contoured seat base with a black finishIncludes adjustable front seat hinge and two rear mount studs for springs; order springs separately (PART #DS-902011, 0820-0010 and 0820-0029)1" x 3/16" welded center barStuds are 5/16" x 7/8" L and 6" center-to-centerSixteen-gauge steel pan with carpeted bottom on select stylesAdjustable chrome front seat hingeTwo rear screw studs for springs (springs sold separately, PART #DS-902011, 0820-0010 and 0820-0029)1" x 3/16" welded center barStuds are 5/16" x 3/4" L and 7" center-to-center