Hi, I bought two of these tile holders recently to protect our bikes. They easily clipped in to the tile (although I don't know how easy it will be to get the tile out if necessary) and the whole assembly, quickly and easily clipped into the underside of my road bike seat as well as my fiance's mountain bike. Unless you closely examine the seat, you can't tell that anything is there--perfect! This seems really well designed/built and we are totally happy with our purchase! Thanks for helping us keep our bikes where they belong.