KAMUI ROKU CHALK Developed by respected chalk makers Kamui in Japan this close packed, premium quality chalk has been created to perform over a wide variety of shot strengths. Key Features: Grip Power: In order to create a larger sweet spot, Exact proportions of the chalk particles are delicately regulated. This enhancement makes the most of the potential of Kamui Tips. Adhesion: Thanks to the unique ingredients, it is easy to apply an appropriate amount on the tip. Solidity: The chalk gains high density and solidity by removing the air. Benefits include ease of chalking and adhesion, so it does not wear off. Larger Sweet Spot: Roku contains a much finer particle size then standard chalk. The purpose of this is to maximize friction and offer a larger sweet spot to generate more spin on the cue More Accurate Aim: Increasing friction decreases deflection, giving the player more accurate aim when english is applied.