Laminated steel body encased in a high-performance thermoplastic cover. Cylinder and dual locking steel levers for pick and pry resistance. Shackle is case hardened. Quick snap cap on the bottom minimizes key cylinder jams caused by dust, dirt and freezing. Keys are nickel brass and colored covers that match body colors. Two keys included with #312D and three keys included #312TR1. 1-9/16 in W case, 3/8 in Dia shackle and 1/2 in horizontal shackle clearance.