Dependable Industries brings you a Set of 8 Sheet Gripper Fasteners. They will Hold Sheets Firmly on a Mattress. These clips will Fit and hold all Size Sheets, from Twin, Full, Queen and King. Our clips can also be used to fasten Ironing Board Covers. Even Works On Air Mattress and Adjustable Beds. These adjustable clips bed sheet fastener allows desired tension to be used. Made for dependable Industries Inc. Essentials they will meet all expectations and are durable.