I bought the copy of the Pinarello/Most chain protector sticker and I got another one on another bike. These are all metal sheets with an adhesive layer. They've stuck to my frames no problem. The problem I've found is that the area on the frame that these go onto is usually not perfectly flat, these protection plates however are. So I wasn't able to get them to sit completely flush all the way around. That's why I wonder how good they are actually going to work when push comes to shove. I think the chain might just tear them right off. I guess I'll see.