Product Details Our sheet slings offer a simple and highly effective way to keep your sheets in the right place. These handy clips, also known as sheet fasteners or sheet holders, are made of top-quality elastic and sturdy metal or plastic clips. These sheet slings are engineered to be compatible with a wide range of bed sheets, such as fitted sheets, flat sheets, and mattress pads, and can accommodate a wide range of mattress sizes, from twin to California king. To use the slings, the process is simple. Simply attach the four clips to the corners of your sheets and slide the elastic underneath your mattress. The sheet holders have a secure grip to ensure your sheets stay in place all night long. The length of the sheet holders can be adjusted, ranging from 8.3 inches to a maximum of 13 inches. In addition, the sheet elastics can be used to secure other sheets, including ironing board covers, mattress covers, cushion covers, and seat covers. Details: Quantity per pack: 4 pieces Color: White Material: Sturdy chrome metal clips and heavy-duty elastic cord Fits all mattress sizes: from twin to California King Adjustable metal buckle: from 8.3 inches to 13 inches