Most pet collars include a metal ring that will hold custom pet ID tags. The ID tags will usually come with a fastener that can be attached to the metal ring of the collar. If not, you may need to find a fastener for the ID tag. Make sure your pet name tags are securely fastened to your pet’s collar and won’t fall off. Also, you should always attach personalized dog tags for pets and cat tags to your pet’s everyday collar. You can also get multiple ID tags to attach to harnesses or training collars that you will take off when your pet comes inside.