Clear Practice Lock

Ordered all three locks - regular, serrated, and spooled pins, and they are very high quality. They provide a great way to learn how to pick these types of pins, what an overset or underset feels like, and give you a great opportunity to get a feel for these locks. When you're ready, a post-it note covering the clear pins provides for a "real world" challenge. There was a slight (understandable) issue with my order and HardCase took care of me immediately - 5 star customer service.