Pur Chalk | #1 Best Climbing Chalk | 100% Natural Chalk for CrossFit, Powerlifting & Gymnastics | Eco- Friendly | Safe for Indoor & Outdoor Use | Gym , Workout & Weight Lifting Loose Chalk | 100% Pure Magnesium Carbonate | Non-staining | Non-toxic | 100% Money Back Guarantee 100% PREMIUM ROCK CLIMBING CHALK - Keep your hands dry while protecting the rock. Pur 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. Pur Chalk is packaged in a re-usable, re-sealable, and recyclable bag for your convenience. SAFE FOR INDOOR & OUTDOOR USE  Dont 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 weight lifting, gymnastics, workouts, and cross fit. 100% CUSTOMER SATISFACTION GUARANTEE - When you order today, you're protected by a 30 Day Money Back Guarantee. No-Questions Asked. Order Pur Chalk today! PROPRIETARY EARTH TONE COLORS AVAILABLE TO PRESERVE NATURE - Specially formulated color with natural pigments to blend into all types of rocks including: all Limestone, Sandstone and Granite surfaces.