If you're in to barbell lifting, you'll know the benefits of chalk to increasing grip power and ultimately increasing your lifts. Also an essential item for crossfitters and climbers. Made from magnesia blocks, this product is designed for use in chalk bags, magnesia stands/chalk bowls. The ultra soft blocks break up readily in to an easy to use powder. With 8 blocks in the package, this pack will keep you lifting heavy or hitting those muscle ups through several months of hard gym sessions.