6Pcs Transparent Practice Padlocks Kit Locksmith Practice Training Skill Set
Lock with open chambers on all the moving parts that allow you to see how it work. You can see clearly that how the pins work when a key is inserted. You actually can see the pins moving up and down as the key slides into and out of the lock. In perfect smooth working condition with no loose parts or pins will come out.
6 x Transparent Practice Padlocks (6 different shapes, as the pictures show)