This was used once . It had a removable cover that can be washed and three safety straps to secure it to a chair. See pics for more specific details. 13x13 inches and 3 inch thick foam insert ** pickup in southeast Kent area just west of Lake Meridian ( 2.4 miles west of Covington Fred Meyer, 1.2 north of Reber Ranch, or pick up near Kentwood High certain days ) . Cross posted