Style B have three latches that lock automatically when you close the lid, thanks to built-in spurs. You'll only need one padlock (not included) to lock all three. A lip around the edge of the lid deters break-ins. Gas springs inside the chest help you open and close the lid smoothly. They lock automatically when the lid is fully extended and unlock with a latch. These chests have slotted forklift pockets, so you can lift them from any side. Install lifting brackets (sold separately) to move them with a crane or other lifting equipment. Warning: Never use to lift people or items over people.