These straps are easy to put on and will keep fitted sheets from sliding off the corners all night, helping your bed look neat and tidy. No more worrying about messy or wrinkled sheets. These bed cover clips are flexible and work well with various types of beds, including odd-shaped beds, foam beds, pillow top beds, sheets, mattresses, pads, comforters, blankets, and even ironing board covers. Durable and adjustable, these corner holders feature wider elastic for desired tension. The adjustable strap clips allow quick and easy length adjustments to fit all mattress edges, suitable for heavy-duty use. The clips have a two-stage design with sturdy chrome metal clips and an integrated plastic clenching system. This securely grips bed sheets while protecting fabric from damage. To use, simply attach the bed keepers to your mattress corners. Maintain a tidy bed appearance at all times. Adjustable elastic: For more tension, press the button and pull the cordadjusts from 7 inches to approximately 14 inches. For less tension, press the button and release the cordadjusts from 10 inches to approximately 22 inches. Color: Black Material: Metal + nylon belt Size: 36 x 2.5 cm Package Contents: 4 x clip sling strap Note: Light and display settings may cause slight color variations between the image and the actual item. Measurement may vary by up to +/- 1-3 cm.