The Kool Stop Campi Super Record 2011 brake pads are a quality replacement brake pad that is also friendly to the wallet. They have the void on the back for use with the 2011 and newer 11-speed skeleton brakes that allow for the brake pad retention spring/clip located on the pad holder. They are also backward compatible with 2000 and newer Campagnolo® and Zero Gravity® brakes so these will basically work for any Campagnolo brakes made after 1999.
This Carbon 1 original carbon compound works great for most carbon wheels but will wear quicker on fast steep descents and heavy braking. Sold as a pair so buy 2 pair for one bike.