This is a set of 3 Supacaz carbon bottle cages. They are very lightweight and look great. As a bonus, I'll include a bracket that can be attached to a seatpost, etc. By attaching this bracket to a seatpost, etc., you can mount up to 3 bottle cages, which is very useful. There are some scratches on the inside from use, so please refrain from purchasing if you are concerned about this.