ColorGrip Chalk vibrantly introduces a creative and expressive alternative to an industry dominated by uniformity. No two styles are the same in the gym or on the wall, and now there is a chalk that truly allows you to express yourself while delivering the uncompromised quality every athlete deserves. ColorGrip Chalk is a non-staining, non-toxic, unique blend of calcium and magnesium carbonate for optimized performance. Hand made in Portland, Oregon. 22.5 grams per bag.