Foam Wheelchair Cushion Vinyl Gray 18 W x 16 D x 4 Gray (Vinyl) * 18 W x 16 D x 4 * Custom sizes available * Optional solid seat inserts available * Designed to provide comfort and basic protection for the wheelchair bound patient * Available with an incontinent medical grade vinyl cover * Medium density fire-retardant foam Shipping Carton Size: 22 L x 16 W x 5 H