Package Includes: You will get 4pcs Sheet Clips, you can adjust from 30cm to 130cm. Perfect for bedding, tablecloths, ironing board covers, mattress pads, slipcovers and etc Strong Material: Bed sheet fasteners is made from Nylon elastic band + Plastic buckle + Metal duckbill clips, with great flexibility, wich are sturdy, not easy to tear or deform, and durable for long time use Durable & Stronger Clips: The duckbill clips are made of nickel-plated metal and built-in plastic fastening system, strong and durable. They can securely hold bed sheets or other fabric without slipping, but prevents fabric from being damaged Simple To Use: Fold the extra edges and corners of the sheets, place the sheets in plastic clips, press the metal button to secure the sheets fixed, and the band length can be stretched to meet your need Widely Usage: The sheet holders fit for bed sheets, mattress covers, sofa cover, tablecloth clips or anything you want to fix, let you avoid the trouble of bed sheets messy, often Sliding