FOR SKIN SMOOTHER THAN 90'S R&B. what is it? In the Buff™ is a premium double-sided pumice stone crafted from the highest quality siliglass. what does it do? A coarse gray side features large open pores to remove hardened calluses, corns and dead cell buildup, while a finer textured white surface buffs and smooths more sensitive areas on rough, dry skin. why is it the best? Long-lasting siliglass construction makes this pumice stone durable enough to use on your feet, yet gentle enough to also use on hands, elbows and knees as well. why will you love it? It'll become your self-care touchstone. HOW TO USE: Soak feet in warm water or use in the shower. Wet the stone, and then rub gently back and forth over dry or rough patches of skin on feet. Rinse stone after each use. Can also be used on rough dry skin on hands, feet, elbows or knees. WARNING: Keep out of reach of children. This product is not intended for use by children. Intended for use on hardened or callused skin. Stop using if skin becomes irritated or inflamed. Do not use on broken, irritated or sore skin. In case of circulatory impairment, diabetes or other diseases that affect foot health, seek a physician’s approval prior to use.