Material: Polyester fastening system: Adjustable elastic straps. Wider elastic provides a stable and stronger grip for heavy duty use; easy to put on and keeps corners in place Enhanced stability with triangle design: RayTour's 4 straps fitted bed sheet holder features a stable triangle design on each corner, ensuring sheets stay smooth and neatly in place and providing triple protection against slipping Upgraded materials: Made with the finest quality polyester bungee band, durable plastic buckle, and robust metal clips; strictly tested to ensure every sheet corner strap is in good working condition Simple operation: Installing and removing the sheet holders is a breeze, taking only a few quick steps; sturdy metal clips bite into the edges and corners of sheets, ensuring a tight and secure grip that keeps them firmly in position Use scenarios Ideal for homes with restless sleepers or pets to prevent sheet corners from slipping Suitable for hotels, guest rooms, and dorms where quick bed making and reliable sheet retention are important Good for standard beds where neat corners and a smooth fitted sheet are desired