Tthere is a better way to secure your swimming pool cover on your aboveground pool with Gladon's unique two piece Cover Loc System. It is designed and engineered to form a positive interlock between a top rail and the cover. The Cover Loc eliminates the need for cables, draw strings, plastic bottles, and weights. During periods of high winds the cover loc system restricts wind lift and pool cover movement along each top rail. Unlike cables, draw strings, plastic bottles, and weights, the Gladon Cover Loc System is an effective way to prolong the life of any cover and reduce top rail paint abrasion. The clips are two interlocking male and female cover loc strips made of a special UV stabilized resin. Male cover loc strips snap onto each top rail, while female cover loc strips snap over the cover and onto the male strips. Each male and female cover loc strip is 42 inches long and provides over 115 square inches of gripping surface. Installing the Cover Loc is simple. First, a male cover loc strip is clipped onto each top rail. Next, the cover is placed over the pool allowing it to hang over the top rails and male cover loc strips. Finally, a female cover loc strip is snapped over the cover and onto each male cover loc strip. Removal is quick and simple, just pull on the excess cover material and the female cover loc strips are released. Male cover loc strips may remain on the pool rail year round if so desired.