Kamui .98b "Beta" Chalk is the newest formula direct from Kamui. This chalk is constructed with finer particles than your standard chalks. They are designed to maximize friction and offer a larger "sweet spot," which generates more spin to the cue ball. The added friction reduces slipping, miscues, and deflection. The end result: Your English Game Will Be Better Than Ever. We are an Authorized Kamui Dealer. All of our Kamui products come directly from Kamui and are kept in a climate and humidity controlled environment. All Kamui Products are Guaranteed Authentic, Original and have never been tampered with or modified.