promotional metal Key chain 1)Material: zinc alloy,iron,brass 2)Size:52x33mm,29.7g 3)Customized design are welcome promotional Metal key chainJust waiting for you ... Description:1) Materials: Brass, zinc alloy, stainless steel or iron depend on customer's requirements2) Size: Different size in available3) Processing: Stamped brass and iron, such as die casting, spin casting also can be available ...