【Adjustable Length】: 4Pcs fitted bed sheet clips with elastic straps which allows desired tension and fit all edge of sheet for heavy duty purpose. It is very convenient to adjust them to the length you need.【Newest Triangle Design】: The 3 way triangle design is more effective than the 2-clips version. our fitted bed sheet holders has built-in plastic clenching system which will grip your bed sheets firmly.【Keep Your Sheets in Place】: Our bed sheet fasteners are easy to put on and will keep fitted sheets from sliding off from corners all night and keep your bed looking great all the times. Never worry about messy or wrinkled sheets again.【Durable Sheet Clips】: These bed corner holders are consisted of elastic straps, metal clips and built-in plastic clenching system which will grip your bed sheets firmly and protects fabric from harm and no damage caused to your bed sheet.【Wide Compatibility】: Our SEEOOR bed sheet grippers fit with various sheets, it could be used on bed sheets, hospital bed, sofa cushion, mattress pads, tablecloth covers, chair / boat / car / motorcycle seat covers, ironing board covers and more.