Back Upholstery. Size: 16"W x 18"H. Color: Black. Embossed, flared (1"). To fit Invacare Tracers, Theradyne A, Evermed, and Medline. Latex free. Screws provided. Top is 1" wider than the bottom. Hole Spacing (from top to bottom): 1" - 5 3/8" - 5" - 4 5/8" - 2".