The Smart Cookie Pet ID Tag is for the dog whose got loads of tricks up their sleeve. Sit, Stay. Rollover. File your taxes. Your pup is a quick study. Don’t be a doggy school drop out! Graduate at the top of your class with the Smart Cookie Pet ID Tag. Free engraving. Add your dog's name for a pet ID tag! Can be customized with up to four lines of text on the backside. Our laser-engraving is guaranteed to last so your pup’s way home will never rub off. Make sure to include your engraving details in the 'Type Pet ID Information Here' text box. (pet's name, owner's name, phone number) Dimensions: 1.32 Inch x 1.13 Inch (33.54 mm x 28.72 mm) Material: Brass, Gold Plating, and Hard Enamel.