Check the listing for details. Sheet Straps Bed Sheet Keeper Holder for Corners Sheet Stays Suspender. Color: Black, Condition: New with tags. Listed at 19.95 USD. Item model numberTHZD2B-4Assembly requiredNoBatteries requiredNoItem Weight3.2 ouncesColorBlackPackage Dimensions9.29 x 6.1 x 0.63 inchesManufacturerTehongSet of 4 Sheet straps; made of quality Elastic Straps, Wider and Thicker elastic to build stronger and more durable holding system;The Enhanced Built-In Nylon "Clips" and Nickel Plated Clamps to holds the sheets Firmly in Place;The Unique elastic strap stopper to allow Desired Tension; the Adjustable sturdy cord lock to allow desired length;Quality elastic nylon Bedsheet Holders for simple bedside installation;Multipurpose: these Bed Sheet Grippers Work with Not Only Bed Sheets but also Couch, Seat Covers, Tablecloths, Ironing Board Covers, Slipcovers.