Features: the metal tags are made of aluminium material, sturdy and firm, not easy to break or deform, will not put too much burden on your pet; The dog tag chains are made of stainless steel material, solid and reliable, not easy to bend, can be applied for a long time Wide Applications: these aluminum stamping blank tags are suitable for making pendants, signs, DIY crafts, can be applied to dog tags, key chains, necklaces, bag pendants and more, making your pet hard to lose Specifications: Material: Aluminum alloy Color: Silver Size: As show in Picture Package includes: 50 x Aluminum Blank Dog Tags, 50 x Steel Chains Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.