Coccyx Cushion Foam 18 x16 x4 Black Modular Seating x large * Hip Measurment 43 Oxygen Masks x large * Hip Measurment 43 55 * Designed for individuals with incontinence problems * Open crotch provides easy access when toileting * Made of 71% cotton 25% polyester and 4% elastine * Machine washable * For correct sizing: Measurement is from hips * The result Polar OwnIndex evaluates your maximal oxygen uptake (VO2max) 75 Up Charge) * Relieves pressure at the sacral area while offering patient s comfort and even distribution of weight throughout the cushion * Medium density fire retardant foam is covered in either a poly cotton in your choice of black navy or gray medical grade vinyl Black * 18 W x 16 D x 4 * Custom sizes available * Optional solid seat inserts available ($8