They are very clever and use QR codes instead of printed details on the back. See below for more details.....
• Add a pop of color to your puppy collar Say hello to limited edition and QR code custom text dog tags.
• Edit more information than traditional ID tags.
• Update text and pictures anytime, anywhere.
• Better privacy protection.
• Made of high-quality alloys, digitally sprayed, with bright colors.
• Scratch, bite, fade, and water resistant.
HOW DOES THIS WORK
• Personalized dog tags for pets, set up in just three steps. Scan the code to register the account to activate the label, upload the photo, edit the text, and click Save to complete the setting. One account can manage multiple pets. This will be your last dog name tag.
NO APP NO SUBSCRIPTION FEE!