24pcs Single Hook Lock Picks Set with 5Pcs Transparent Lock Locksmith Practice Training Skill Set

Transparent Lock: Lock with open chambers on all the moving parts that allow you to see how it work. Can see clearly that how the pians work when a key is inserted. In perfect smooth working condition with no loose parts or pins will come out. You actually can see the pins moving up and down as the key slides into and out of the lock.