18″ Drive/Panacea Back Upholstery with Pouch 18W x 18H, OEM, Fits Chrome Sport & Silver Sport II Compatible with chairs made in or after November 2009 Serial Number 8M or 4S Width: 18”, Drive OEM Part Includes Hardware Black vinyl with 12″ x 18″ pouch on back Hole Spacing Measures: 5.5″, 5.5″, 5.5″
