Sold individually as inner and outer clamp.
Aluminum construction
7mm seat post rail compatible
*****Customer Alert: Cracked or damaged clamp(s) are not normal. In the event this has occured, your seat post is most likely counterfeit and was manufactured by another entitiy than SR Suntour and sold on a 3rd pary site such as Amazon. If you are unsure of have any questions, please email sales@srsuntour.com with your seat post serial number. ******