Tweezerman Pedro Callus Stone is a top-selling German-made ceramic stone that features a rough side for removing calluses and a fine side for smoothing and massaging your feet.Tweezerman Pedro Callus Stone combines a coarse side for reducing stubborn calluses and a fine side for smoothing away rough skin, whilst the sleek handle is super-comfortable and provides maximum control — the durable, lasting design holds up to frequent use for year round soft, beautiful feet.Directions of use:Wet stoneUse rough side in a circular motion using light pressure to remove callusesUse fine side to smooth out areaRinse after use