Features and Benefits: Made of High polish chrome vanadium steel; Heat treated; 12 point on box end; Packaged in a plastic tray; Includes sizes: 3/8″ (KTI41212), 7/16″ (KTI41214), 1/2″ (KTI41216), 9/16″ (KTI41218), 5/8″ (kti41220), 11/16″ (KTI41222), and 3/4″ (KTI41224) wrenches;