Heavy-duty elastic straps and nickel-plated clips HIGH QUALITY MATERIAL: This fastener is made of durable heavy duty elastic cord and sturdy stainless steel clip to hold the sheets securely. Easy to place and hold the sheet in place, no need to fasten the sheet, the adjustable length allows the desired tension. DURABLE AND ADJUSTABLE: Adjustable lock making straps can be used for different sized beds, bed linen sling queen, king and twin beds; bedding accessories. Triangular Design: These bed sheet clips have a triangular model design which is more effective than the 2 clip version. They will hold onto your sheets all the time. MULTI-PURPOSE: These sheet grippers are suitable for all types of bedding such as sheets, mattress pads, tablecloths, ironing board covers, sofa covers and more. ; High quality and eco-friendly elastic nylon straps for easy bedside installation Note: The data are all measured manually, please allow 1-3cm error. Due to the difference in light and display, there will be a certain color difference, which is subject to the actual product received. Delivery quantity: 4 pieces (subject to the main picture)