This grater of Mercurochrome Laboratories combines stainless steel to remove calluses and calluses, and emery for gentle maintenance and smoothing. The roughened surface is made of steel, a material that removes all the largest, thickest, and hardest roughness. The smoothing surface is made of emery, a specific material that does not damage the skin of the feet. This more delicate surface softens small irregularities and removes dead skin. Thanks to this grater, the skin on the feet gradually becomes smooth and thus regains its full softness and flexibility. Ergonomic, it allows you to carefully and delicately remove calluses.