Designed To Provide Comfort And Basic Protection For The Wheelchair Bound Patient. Ideal For Institutional Use *this Cushion Is Available With A Poly/cotton Cover Or Incontinent Medical Grade Vinyl Cover *a Medium Density Fire-retardant Foam Is Used For This Cushion *an Optional Solid Seat Insert Is Available *supports 250 Lbs. *please Specify When Ordering *cover: Poly/cotton - Medical Grade Vinyl *color: Black *thickness: 2 *size: 20 X 16 X 2