Order # 41644309 Manufacturer# 754164 Brand Ultra-Cushion Manufacturer Skil-Care Application Wedge Seat Cushion Cover Material Vinyl Cover Dimensions 20 X 16 X 4-1/2 X 1-1/2 Inch Inflation Type Non-inflatable Material Foam Securing Method Straps UNSPSC Code 42192208 The ultimate in pressure relief, redistribution, comfort, and support with an added wedged firm foundation that levels all wheelchair seat surfaces and helps maintain a 90?? neutral base Firm foundation eliminates pressure caused by sling-seat hammocking High-density foam increases comfort and stability Contoured base rests below seat frame so user sits lower in chair Incontinent-proof, vinyl cover prevents urine from entering cushion