Keep mattress pads, comforters, and blankets in place with the 4-Pack Mattress Clips Set by Fresh Ideas. Our heavy-duty clips provide a simple solution that's easy to use just attach the metal clips to the mattress pad or other bulky item approximately 7-10 inches from the corners, clip the elastic straps under the mattress and make the bed as usual. If needed, reposition the metal clips for a snugger fit. Features extra-wide grips to accommodate thicker fabrics and are designed to fit an array of beds: adjustable beds, pillow-top beds, memory foam, and sofa beds. Can be used on any size bed: twin, twin XL, full, queen, king, or California king. Bed Size: Twin Measurements: 6.75 Length/Inches, 3.2 Width/Inches Care: Spot Clean Mattress Securing: Elastic Anchor Bands Mattress Pads & Toppers Type: Mattress Protectors Country of Origin: Imported