Large engraved aluminium round dog tag laser engraved aluminium round pet id tags with free uk delivery round pet id tagssuitable for medium and large size dogs 36 mm wide x 36 mm high 15mm thick and available in 6 metallic colours dog tags amp the law control of dog order 1992 every dog while in a highway or in a place of public resort shall wear a collar with the name and address of the owner inscribed on the collar or on a plate or badge attached thereto you can be fined up to pound500