Lang Lower Rocker Box 7/16” Wrench for Evolution® is an extra long reversible ratcheting box wrench used to install/remove the lower rocker box on Harley- Davidson® motorcycles with Evolution® engines (19941999). The Lang Lower Rocker Box 7/16” Wrench features a vinyl grip that prevents the wrench from scratching or marring the bike, and a 7/16” protruding socket, with a 1 1/4” socket length.