The back of this tag can be left blank or engraved with a QR code that is powered by our partner ScanKeep. Lost-and-Found QR code, and a FREE lifetime membership, are provided by ScanKeep. Learn more at ScanKeep.com. When your customer receives their tag(s), they can scan each QR code to activate it and add their contact information to it. Each QR code is unique, and should be added separately to their ScanKeep account. They can update their contact information anytime without having to change their QR codes, and they can manage all of their tags in one easy-to-use dashboard. They can also upgrade their membership to Premium to add more peace-of-mind to their QR codes.