Keep your pet's nails groomed with the battery-operated automatic pet nail grinder file. The filing wheel has fine-tooth sandpaper and painlessly grinds their nails down. This is a perfect and convenient tool to keep your pet's nails groomed to prevent scratches on your floor, carpet, furniture, or clothes. Keeping your pet's nails trimmed prevents painful, ingrown nails. This kit includes three replaceable filing wheels for plenty of grooming; and requires two AA batteries (not included).