Duck Covers Duck Dome Airbag for Sofas Between 73" and 87" Wide, or Rectangle/Oval Tables Less Than 96" Long with or Without Chairs Fits into low points of outdoor furniture creating dome-shaped surface under cover. Eliminates pooling of water and debris on your patio furniture cover. No messy cleanup! Includes inflator adapter for use with the valve. Electric Air Pump (model number HT-198) sold separately. Fits into low points of outdoor furniture Creates dome-shaped surface under cover Eliminates pooling of water and debris on your patio furniture cover No messy cleanup! For use with sofas between 73" & 87"W & rectangle/oval tables less than 96"L with or without chairs Rechargeable inflator (model HT198) sold separately 66"L x 36"W x 24"D