Wood Grip: 8" Swimming Pool Cover Stainless Steel Spring - 1 PACK Heavy duty Stainless Steel (SS 304) Spring -Genuine "Wood Grip" brand. 7 1/2" long compressed (8" stretched during installation) Will hold a strap 1" wide or smaller Works with most major brand pool covers - Meyco, Loop-loc, Latham, Raynor, GLI etc. Made for harsh cold weather!