3pcs 7 Pins Adjustable Tubular Lock with 1 Transparent Tubular Lock

Description

It's suitable for beginners，you can see clearly that how the pins work when a key is inserted.
It will come out 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.
The package includes:
3 piece tubular lock tool set (7.8mm 7.5mm 7.0mm)+1 transparent tubular lock +1key