Small Heart Aluminum Pet ID Tag Custom Engraved Dog & Cat Personalized 1" Made In USA. Aluminum material. Light weight, strong and durable. Engraving by IO Tags Tag measures 1" x 1.1" Tags are diamond scribed engraved (permanent) Great for cat and small dog. 9 colors to choose from: [1] Black; [2] Blue; [3] Green; [4] Gold; [5] Orange; [6] Pink; [7] Purple; [8] Red; [9] Silver