Pet Tags Bone Shape Custom Diamond Tip Engraved Double Sided Aluminum Pet Tags Small Bone = approx. 1", Large Bone= approx 1.5" X-Large = 2.0" Double Sided Diamond Tip Engraved. Up to 3 lines per side. Approx. 16 spaces per line. Roman or Script Font Choice. You must message with Engraving info when purchasing.