The Galvanized Figure 8 Hook is a versatile link that is mainly used for playground purposes. The hook is more used for swing sets. This figure 8 link is hot dipped galvanized to make it more durable. The galvanization promises that it will never corrode or rust under extreme humid temperature. The surface is pinch free meaning it will not hurt the children even if they try to hold it. The Galvanized Figure 8 Hook is ¼-inch in diameter and it provides the best support to your little one's favorite swing. Child Works knows the value of the smile on your little one's face and so would you if you get this for your home or backyard.