One set includes 4 pad set. High-Performance Vesrah Sintered Metal pads manufactured FROM copper, tin, graphite and other metallic elements. Meet or beat OEM quality parts. Superior to organic pads and designed for both conventional and stainless steel rotors. Vesrah Sintered Metal pads are manufactured for all-weather applications and high temperature stability. The metal to metal friction yields high heat and maintains higher temperatures without fading when compared to organic pads, any water on rotor surface will evaporate almost instantly. Quick Recovery of Braking Power due to Wet conditions. At high temperatures, no softening and no vaporizing like organic marerials. Sintered metal maintains same friction coefficients (0.49}0.04) throughout operating temperatures. Invest in a spare set today!