●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. ●WEIGHT: 250 gram (~8. 85 oz) ●That it is also the world’s tastiest chalk for a chalkbag is a bonus. Get your hands on the new 8BPLUS Chalk now and make your chalkbag happy.