Skil-Care, Wedge Seat Cushion Skil-Care 18 W X 16 D X 4 H Inch Foam, 1 EachProduct Description Wedges are recommended when you want to lean your resident back in the wheelchair in order to promote better sitting posture and reduce sliding Each Skil Care wedge cushion has tie cords that secure the wedge to the wheelchair frame This Wedged Seat Cushion is covered with a heat sealed wipe clean anti bacterial vinyl High density foam provides comfort and reduces pressure Firm foundation eliminates pressure caused by sling seats