In this video, Mr. Li demonstrated how to use Lishi HU66 laser pick, a lock pick invented and made by Mr. Li, before releasing his 2-in-1 decoder and picks. You will see how the inside pins move when the pick is inserted and a little force is applied, inside the cutaway lock.
The Lishi laser picks had been stopped production, and replaced by Lishi 2-in-1 decoder and picks. The video is still useful for you to understand how a Lishi pick works, when you’re learning using a Lishi 2-in-1 lock pick.