ARP 2008534 10-Pack Of Special Purpose Washers, 1/2" Inside Diameter, 7/8" Outside Diameter.120" Thick Parallel-ground and hardened high performance washers Constructed from premium chrome moly and finished in black oxide Traditional style washer with no inside diameter chamfer 1/2" inside diameter, 7/8" outside diameter, and .120" thick Each package contains 10 washers