Onyx Professional Double-Sided 100% Siliglass Pumice Stone will smooth away calluses and dry patches faster than ever! Onyx takes pride in having the world’s best pumice stone! Sourced from Spain and made of 100% Siliglass, this exfoliating stone is the best dry skin remedy around. There are two amazing sides to this pumice stone’s story. Side one is coarse green porous material that works as an exfoliator and callus remover. Side two is the fine, smooth white material that works as a sander that buffs all impurities away, revealing soft and supple skin. Our unique, wide pore structure even resists bacteria and mildew production, so you can have it for years to come. We even applied grit on all four corners giving our pumice stone 360-degree exfoliating capabilities. Onyx Professional Siliglass Pumice Stone is the perfect addition to any pedicure or self-care routine. See for yourself why our pumice stone is the better than all the rest!