Friction Labs Gorilla Grip Loose Chalk 12 ozFriction Labs Gorilla Grip Loose Chalk 12oz Medium Chunky Grip for Maximum Control When every rep, set, or hold counts, trust Gorilla Grip from Friction Labs. Designed with a medium chunky blend, this chalk provides an ideal balance between fine powder and chunky nuggets, giving athletes a consistent application and longer lasting performance. Manufactured in the USA from pharmaceutical grade magnesium carbonate, Gorilla Grip is silica free, non