Coccyx Gel Seat Cushion w Fleece Top 18 Wx16 D x 3 Cushions Air 10 5 8 Diameter chrome * Nasal Cannulas 10 5 8 Diameter chrome * Height adjustment 34 to 72 * 12 flexible arm permits positioning in any direction * Uses 60 Watt bulb (not included) * UL and CUL listed * Shipping Carton Size: 30 L x 13 W x 5 H The color and measurement may have slight errors due to manual measurement and monitor display 16 x 18 x 3 * Cut out relieves pressure on the spine * 3 High density foam with gel pad center * Reduces pressure on the tail bone and spine * Washable navy cover with soft fleece top * Suggested HCPCS code E2601 * 1 year warranty