The Dura-Gel® BASE 3G wheelchair cushion reduces surface pressure through the use of a support layer of non-aqueous Dura-Gel®. The cushion uses a high-density base foam for durability in combination with a convoluted topper for comfort and airflow. Features a comfortable convoluted foam topper with a high density base foam Features a specialized Dura-Gel® center layer surrounded by comfortable foam layers on the top and bottom of the cushion The cover has a four-way stretch top with a no-slip base fabric and has a strap at the back to secure the cushion firmly to the chair Accommodates a wide range of body shapes, sizes and weights 300 lb maximum weight capacity Lightweight 1 year limited warranty Designed to meet HCPCS Code E2601-E2602 (E2601 for Sizes < 22"; E2602 for Sizes ≥ 22") Not made with natural rubber latex Dimensions: 24 X 18 X 3"