The Hawk HB688Z.710 is a front brake pad in Hawk Performance's ceramic racing compound, listed as part of the AP Racing/Alcon performance pad line with a 0.710in friction thickness. Buyers looking for a replacement pad for an AP Racing or Alcon caliper setup can use the listed thickness and part number to match the pad to their application. Confirm the pad's fitment against your caliper and rotor specifications before ordering.