These large, six inch cover clips grip your top rail like a clothespin and hold your winter pool cover on an above ground pool much better then smaller versions sold on the market today. A very popular way to secure your winter pool cover and avoid high winds pulling your winter cover off this winter season. A good rule of thumb is to use two clips per vertical post, or use our cover clip guide located in our resource center. An inexpensive method to providing tough durable solution to avoid wind driven problems this winter pool season. Sold in packages only, please select package from drop down menu below.