Made from 100% fine magnesium carbonate, this chalk increases friction, improves grip and is suitable for beginners, pros and everything in between. It comes in big chunks you can crush yourself.Easy to manage due to the handy resealable zip-lock packaging which is also made from recyclable kraft paper with a special biodegradable PLA inner lining. Gluten free, allergen free, free from heavy metalsEnvironmentally friendly packagingResealable zip-lock bag100% fine magnesium carbonateISO 9001 certified120g bag