GEKCO Chalk

Pure, high-performance liquid & loose chalk. Zero resins or thickeners. Seawater processed and packaged responsibly. GEKCO is engineered for the best friction with no detrimental effects to the environment. The highest purity magnesium carbonate. No resins, additives, fillers or nastiness - just chalk. Engineered for the absolute best friction with no detrimental effects to the environment.