Smooth and silky, with rounded edges, the Red Dingo Flat Metal Tag is perfect for engraving our dogs' vital information. The Medium Tag is 1 1/4 inches and has enough room for a name and 2 or 3 phone numbers. (16 characters per line including spaces and other punctuation.) Choose any shape in stainless steel or brass. Engraving and shipping to your home is free. The engraving is guaranteed to be readable for life!