These galvanized u-hooks are corrosion-resistant and useful in a number of different applications. They are often used outdoors to secure items like tents, canopies, trampolines, and hammock stands. Wide 1 1/2″ opening allows them to seat a relatively large pole and 12″ length gives you plenty of leverage when securing into the ground. Length: 16″. Diameter: 3/8″. Quantity: 24.