Geo Matt® PRT Seat Cushion, 18 in. W x 16 in. D x 3 in. H, Foam, Black, Non inflatable, 1 Each 30 40 Below Knee The ROHO© SELECT Cushion Cover Color:Yellow The ROHO© SELECT Cushion Cover is a textile enclosure intended to protect the cushion * Replacement Covers for the following Cushions: * QUADTRO SELECT© HIGH PROFILE© Cushion * QUADTRO SELECT© MID PROFILE© Cushion * QUADTRO SELECT© LOW PROFILE© Cushion * CONTOUR SELECT© Cushion * This is available in Heavy Duty Cushion Cover a fluid resistant textile enclosure * 22 x20 * For Quadtro Select High Profile Cushion * Warranty: 6 Month Limited Warranty runner's and jumper's knee Its Ring of Air channels at the base of each segment ensure even pressure distribution by dispersing heat and moisture firmer base needed by more active wheelchair users