[Locking Design for Grip]Our bed sheet holder have soft corner brace with a lock design for anti-slip. All surfaces of bed sheet clips have multiple particles that prevents slipping, and the butterfly tightener to be inserted over the sheet for locking in place, bed sheet straps ensuring sheets doesn't slip or bunch up as you sleep. [No Harm For Sheets]Sheet straps fastener is soft and made of durable premium silicone, the butterfly clips of bedsheet clips/straps securely keep sheets in place without causing any damage or tearing. Don't waste your money on clips that will inevitably break after a couple uses and rubber bands that are hideous on the bed. [Fits All Sheets Types]These fitted sheet clips are compatible with all bed sizes, from full to king, fitted to flat sheets. The sheet holders can firmly clips the mattress corner to keep sheets in place. Using this sheet hold grippers, your nights will be comfortable with no sheet issues to disrupt your sleep. [Save Organizing Time]With our fitted sheet straps, you can cut down on at least one tedious and time-consuming step of daily bed-making routine. Once in place, bed sheet holder straps will keep sheets firm and tight. If you want to do away with the hassle of putting a top sheet, bed straps for sheet are a good choice. [Effortless Installation]No need to put sheet strap holders together to form the base. After putting sheets on, find rectangle button at first, use your finger to push the back of rectangle button for fixing, then insert the butterfly to the stand out rectangle and turn to lock. Also, bedsheet tightener clips are easy to remove and reattach without having to lift up the entire mattress. Colour:Grey Material:plastic Package Contents: 4 * Bed Sheet Holder Lock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.