The U-Haul Discus Security Lock is a heavy-duty stainless steel lock engineered to deliver reliable protection for your valuables. Featuring a laser-welded armor case and a 5-pin tumbler mechanism, this lock is built to resist tampering and forced entry. With a shackle height of 3/8 inch (10 mm), it is perfectly sized to fit all U-Haul trucks, U-Haul storage units, U-Box containers, gym lockers, and cargo trailers, making it a versatile security solution for both moving and everyday storage needs. The lock comes with two keys included, so you always have a spare on hand. U-Haul specifies a unique sequence of 143 distinct operations to manufacture this lock, ensuring a premium level of quality and durability. Weighing just 0.5 pounds, it is lightweight yet tough. Backed by a lifetime guarantee, this discus lock is a dependable choice for securing your belongings at home, at the gym, or on the move. Please note that product packaging may differ from what is shown.