Features: Improved length adjustment lock enables easier and quicker adjustment on cord length to generate desired tension. High elastic quality, hold sheets tightly Duckbill clip containing soft plastics, does not will bite bad sheets and other items. Can adjustment length, can be longer or shorter. Fit for bed sheets, mattress pads, tablecloths, ironing board covers, slipcovers and more. Fastener Strap only, other accessories demo in the picture is not included. Specifications: Material: Plastic buckle + elastic band +Metal Clips Width: 2.3cm/0.91inch (approx) Length: Adjusts from 13~20cm/5.12~7.87inch(Approx) Can be extended to 35cm/13.78inch Color: Black/White (optional) Quantity: 4Pcs Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Package includes: 4 x Bed Sheet Clip (without retail package)