What would compel world class Euro dog pro bike race teams like Cofidis, Bouygues Telecom, and Brioches la Boulangere to retro fit their ShimanoCampagnoloMavic brake calipers with the aftermarket pads of a small Swiss brake pad manufacturer' It's because that manufacturer, SwissStop, is fixated on making the very best brake pads in the world for any every conceivable condition. SwissStop pads are made by a Swiss company named Rex Articoli SA. Their 70 years of experience in technical compounds allows them to produce brake pads with highly fine tuned performance characteristics. SwissStop pads have superior stopping power, low pad wear rates, very linear brake response, and a smooth, quiet performance. GHP stands for Green High Performance, and it's SwissStop's versatile all conditions pad for aluminum and ceramic rims. It has superb stopping power and remarkable durability even in nasty, rainy slop. If you find yourself in the rain a good bit, the GHP is tailor made for you.RacePro means one thing: These are compatible with 2000 present Campagnolo brake calipers. One order gets you 4 pads total enough for one bike.