Made from 100% fine magnesium carbonate, this chalk is high-quality, increases friction and improves grip. It is suitable for beginners, pros and everything in between. The handy resealable zip-lock packaging makes the chalk easy to store and manage. The chalk is 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 certified450g bag