Kool Stop's classic brake pad refill/inserts for the AX Adamas braking system. BE SURE TO MEASURE YOUR PAD HOLDERS AND COMPARE DIMENSIONS TO  THE ONES PROVIDED BELOW BEFORE ORDERING. Specifications: * Kool Stop part number: KS-AXB * Color: BLACK * Overall length: 34.75 mm * Braking surface: 31.42mm X 8mm * Portion that inserts in the holder: 31.3mm X 9mm * "Height" (that extends from the holder): 5.65mm * MADE IN THE USA * SOLD IN SETS OF FOUR (SET = 2 WHEELS/BRAKES)