400 g magnesium carbonate.
400 g chalk powder consisting of an optimal blend of coarse and fine-grained magnesium carbonate. Best magnesium carbonate for dry hands and an optimal grip. Ideal for climbing, bouldering, gymnastics and other sports that require dry hands. Use for indoor and outdoor use. Resealable pressure closure for optimal sealing of the bag. Undesirable leakage of chalk is avoided.
Also available in powdered form and as a 650 gram pack.