Andux Land Triangle Sheet Suspenders Adjustable Fitted Sheet Straps Grippers Mattress Cover Corner Holder Elastic Straps Fasteners Clips Clasps 09-CDJ-001 1. Set of 4, great For Bed Sheets and Mattress Covers. 2. High elastic quality, hold sheets tightly. 3 Pull side of each corner, resize as needed. 4. The bedding holder clip are fitted for any bed sheet both king size and queen size mattress gripper. 5. Keep bottom sheets on all mattresses, even hide-a-beds, adjustable beds, inclining beds, baby's cribs and more.