Alligator Bike Road Brake Cartridge Compatible Shoes Pads with Shimano Dura Ace/Ultegra/105/Sram for Alloy Rims There are only 2 Amazon market place sellers independently "Authorized" by Alligator Cables: Amazon, and My Cyclist Colored cartridge brake shoes set with triple-color compound pads for Alloy rims(Quiet, low noise) Excellent performance for both dry and wet conditions Compatible with Shimano Road Brake Systems including Dura Ace, Ultegra, 105 SCM including BR-7800, BR-7700, BR-6500, BR-6600, BR-5500 and BR-R600 Length: 55mm, Quality Made in Taiwan