18 x 16 * Designed to provide a comfortable functional and stable sitting environment * Should NOT be used for patients who are highly susceptible to skin breakdown or have an existing sore * 3 poly vinyl interconnected air cells are easy to setup inflate and adjust * Easy to handle and transport: weighs only 1 lb * Includes a reusable washable cover * 12-month limited manufacturers warranty * HCPCS Suggested Code: E2601