1.Engraved letter D-ring for climbing shoe 2.Material:brass,iron 3.Color:many for choose. 4.Size:can be customized. . Engraved letter D-ring for climbing shoe1)Material:iron,brass, brass don't rust2)Craft:plating, painted3)Size: many sizes are accepted,Customers'design are accepted4)You can choose equipped with rivets or hollow rivets ,but the hollow rivets' tensile strength is better than rivets ...