This is a high purity Magnesium-carbonate without any fillers or drying agents. A cleaner chalk that is better for your hands, has great drying characteristics and a fantastic hand-feel, which is developed to deliver on your toughest requirements on chalk: Top Friction, long lasting and effortless chalking up. It&';s here! 8BPLUS premium chalk bag food, erm.. climbing chalk. High purity Magnesium carbonate without fillers or drying agents. Great drying characteristics and hand-feel. Fine and light powder form for effortless chalking up. Developed by climbers for climbers. Get your hands on the new 8BPLUS Chalk now and make your chalk bag! Features: High purity magnesium carbonate for rock climbing and other sports Keeps your hands dry for a stronger grip Powered consistency CLIMBING CHALK: 100% pure Magnesium carbonate with great hand feel and drying characteristic, which is developed to deliver on your toughest requirements on chalk. PURE: No added fillers or drying agents. No heavy metals - cleaner is better. CONVENIENT: Reusable zipper packaging with transparent windows to view fill levels.