CollarTags™ are guaranteed to remain legible for the life of the pet the CollarTag™ is purchased for. You will not have to ever buy another id tag unless you need to update your contact information. When deciding which tag to buy keep in mind that you will have to replace a traditional hanging tag many times over the life of your pet. A CollarTag is the last tag you will have to buy unless you need to update your contact information. UNCONDITIONALLY GUARANTEED. As the saying goes, “You get what you pay for.”