Gel/Foam Wheelchair Cushion 17 x17 x2-1/2 17 W x 17 D x 2 1/2 * Custom and bariatric available (bariatric sizes increase weight capacity to 450 Lbs.) * 250 Lbs. weight capacity * Segmented gel bladder contains an aqueous highly viscous gel surrounded by a high density foam shell that is covered using a fluid-proof low shear nylon top with a medical grade vinyl bottom * All cover materials and foam are fire-retardant and anti-microbial * Medicare Code #KO652 Shipping Carton Size: 20 L x 18 W x 4 H