$0.15 worth of credit back
Black Diamond Upsalite Booster
The Black Gold Booster is designed to enhance any bag of chalk. Featuring a concentrated amount of Upsalite—a new scientifically engineered form of magnesium carbonate that absorbs 30% more moisture than other compounds—this chalk additive will enhance your grip and provide a boost when mixed with other chalk.
• Pure Upsalite compound absorbs 30% more moisture than other compounds
• Scientifically engineered to enhance your grip
• Booster can be mixed with other chalk
• Comes in single serving perfect for adding to any Chalk pot or chalk bags worth of chalk