Nobody makes more brake pads than Kool Stop, and nobody offers superior stopping power for the money. These pads are ideal aftermarket replacements for your Dura-Ace or Record pads once you've worn them out. They cost a fraction of what Shimano or Campy pads run, and you don't sacrifice one iota of stopping power. These pads are specifically intended for use with aluminum (not carbon) rims. One order is for two pads, that's enough for one brake caliper. For those of you with Zero Gravity brakes -- these are a great option for use on aluminum rims. If you're looking to replace your ZG pads and you're intrigued by an option other than Swiss Stop, this is a great choice. Make sure to choose the Campagnolo version of these pads, as they fit perfectly within ZG's pad holders. Please note: The Campagnolo version will not fit 2011 Campagnolo brake pad holders.