18w x 18d Seat Upholstery, Black Vinyl Tracer-IV, EX2, SX5, SX5RC Recliner, U67 Black Vinyl New Style, 6-Holes Per Side Black Vinyl Seat Cushion for the Invacare Tracer Series Manual Wheelchair Tracer DLX (After 3/13/00), Tracer SX, and Tracer SX Recliner Hole Spacing from Front 1″, 3-1/8″, 3-5/8″, 3-5/8″, 4-3/4″, 1-3/4″ Includes 12 Mounting Screws and 12 Countersink Finish Washers Invacare OEM NOTE: After 10/11/16 additional hole was added to the rear corners of the seat upholstery and accommodates all wheelchairs manufactured before 10/12/16 as well. All Crossbrace Seat Rails in the field already have the additional upholstery hole and do not require replacement of Crossbraces
