This comes with 12 QR labels that stick well to non-porous items. They work so easily. When you first get the labels, you scan one of the QR labels with your phone's camera. It takes you to a website where you enter the information you are comfortable sharing: voice phone number, email address, and text phone number. There is no subscription fee or any other ongoing fee. The labels arrived in three sizes, with medium the most common. The smallest size is tiny, and the text size is difficult to read. But that size is perfect for small electronics, like an AirPods case. If you want to put this on a luggage tag, they also come with cover-up stickers that are easy to peel off. That way, your QR code (and contact information) is hidden until the bag is lost and some kind person tries to find out who the owner is. I like the relative privacy this solution offers. It's much better than printing your name, address, and phone number on a highly visible tag. The stickers are high-quality. It claims to be dishwasher safe. So, you could put this on your expensive Stanley or Yeti water bottle. I haven't tested that claim. My QR code labels all went on electronics I use while traveling - phone, laptop, charger, e-reader, powerbank, handheld fan, flashlight, etc.