Twin-Pack 8 Ironing Board Cover Straps /Sheet Grippers w/ Metal Claw Fasteners 8 Mini-Stretch Fasteners / Grippers, Come In Clear Bulk Packaging. Keeps a firm grip on your ironing board covers and other uses. Small Size - 5" Long and stretch to 9" Long. Alligator teeth clip on easily and hold firmly. These also make excellent bed sheet grippers.