Transparent Visible Padlock Practice Lock has a transparent case which allows you to see how the moving parts work, and how the pins work when a key is inserted. It’s of high quality and in perfect condition with no loose parts or pins will come out.
If you’re a locksmith learner or beginner, this lock will be very useful for you to practice unlocking a lock with a GOSO 12 piece lock pick set or similar hook picks. You actually can see the pins moving up and down as the hook pick slides into and out of the lock cylinder.
1* Padlock practice lock