BESTOPE professional cutaway inside view of a lock is a practice padlock product which is ideal for new locksmiths. This lock acts like a training tool for aspiring locksmiths and gives a complete inside view of a lock and thus explains its working. It has a transparent plastic shell so that you can see how the pins go up and down and how the key slides in and out of the lock. The package consists of 1 padlock and 2 keys. The padlock is in smooth working condition and has no loose parts or pins coming out.