By putting this specialized Pet ID Tag on your pet, you are telling the human who finds your pet that they have microchip technology so they can take them to any vet or center that is able to read the data. Customize with your dog's name which will make it easier for the finder to talk to them. Personalized ID tag is made of rust-proof .040" aluminum and can be printed on one side or both sides. 1/8" hole at the top is pre-drilled and this tag includes a 5/8" double ring fastener. Most orders ship by the next business day, so don't hesitate and order your custom Pet ID Tag today!