Premium Metal Heart Shaped ID Tags engraved with your pet's name, microchip number and your phone number. These tags are made from a thick nickel alloy so they are very durable and the contact information is engraved into the metal so it won't rub or wear off. They are available in a large and a small size suitable for small dogs and cats. Small 1" wide and 1" tall Large 1-3/8" wide and 1-3/8" tall