C70 The Unremarkable Treasure

What's so special about this item? And all these circles, what are they for? Could they possibly be used for hypnosis?

"Director Lin, I must admit, there's something about these circles that unnerves me. If there were only one or two, I might not mind, but I counted at least fifteen or sixteen. They couldn't be for hypnosis, could they?" Xiao Men asked