Black Diamond Black Gold Loose Chalk Double the absorption.Black Gold Chalk is scientifically engineered to enhance your grip. By combining our classic White Gold, the most trusted chalk on the market, with 10% Pure Gold-a concentrated form of hyper-absorbent Upsalite-we've created Black Gold, an additive-free blend of chalk with TWICE the absorption of regular chalk.Absorbs twice the moisture than regular chalkScientifically engineered to enhance your grip