Intended for use on callus feet only. Injury may occur if used on smooth, uncallused skin or other body parts. Do not use on irritated, inflamed or inflected skin or on open wounds, as this may result in cut or irritation. Micro-files are sharp. Use caution to avoid injury. Do not use if diabetic or have poor blood circulation. Do not use if metal become rusted, bent or damaged as injury may occur. Consult a physician before use if any skin condition exists. Seek medical attention if skin becomes severely irritated or bleeds. As a personal care product, Pedi-Expert is not recommended to be shared or used by more than one person. Do not use on children. Keep out of the reach of children.