Order # 75434309 Manufacturer# 754330 Brand Ultra-Cushion Manufacturer Skil-Care Application Seat Cushion Cover Material Vinyl / Cloth Cover Dimensions 16 X 18 X 4 Inch Inflation Type Non-inflatable Material Gel / Foam Securing Method Safety Strap UNSPSC Code 42192208 High-density foam increases comfort and stability Firm foundation eliminates pressure caused by sling-seats Contoured base rests below seat frame so user sits lower in wheelchair Low-Shear outer cover reduces skin-damaging Vinyl inner cover is incontinent-proof and wipes clean For slide control, with similar features as the Ultra-Cushion, choose the Ultra-Wedge