alloyPACKAGE INCLUDE: 50 Sets alloy shoelace tips end cap and screws. Cord End Cap: about 19mm long, 7mm wide, hole: 5.5mm.STURDY MATERIAL: Made of high quality metal alloy, which is sturdy and durable, not easy to rust and break, convenient for you to use.WORKS FOR ALL KIND OF SHOELACES: This Cylindrical Metal Aglets Shoelace Accessories Tips can fit all kind of shoelaces.EASY TO INSTALL: Clamp on design, very easy to install. You can follow the installation guide and finish the installation in a minute. Whats more, it is removable; you can uninstall it and put the tips on other shoelaces.WIDE RANGE OF APPLICATIONS: It is very suitable for most types of shoelaces and down jackets, sweaters, casual pants, and padded jackets. Metal decoration can make your shoelaces or clothes bright and stylish. It is an excellent choice for you to protect the tip of the rope.