We scanned the globe to locate the finest free-range calcium carbonate to keep your fingers dry and true. Available in block, loose and refillable ball versions.
- 100% PREMIUM ROCK CLIMBING CHALK – Keep your hands dry while protecting the rock. Black Diamond Chalk coats your hand with an ultrafine layer of Magnesium Carbonate that keeps your hands dry and sticky. No more sweaty palms and greasy hands.
- ECO-FRIENDLY, BIODEGRADABLE & SUSTAINABLE – Made from 100% Pure Magnesium Carbonate with no fillers or drying agents for maximum sweat absorption. Black Diamond Chalk is packaged in a re-usable, re-sealable, and recyclable bag for your convenience.
- SAFE FOR INDOOR & OUTDOOR USE – Don’t ruin the surface of rocks by leaving white marks all over the rock face. Preserve the beautiful rock face for generations to climb and enjoy. Also works great for weightlifting, gymnastics, workouts, and cross fit.