metallic or plastic casing a dial or keypad numbered digits a reset button a shackle or latch to secure the lock a release button to open the lock
combinationlock which has metallic or plastic casing combinationlock which is a dial or keypad combinationlock which has numbered digits combinationlock which is a reset button combinationlock which is a shackle or latch to secure the lock combinationlock which is a release button to open the lock