A nail clipper or nail trimmer is a mechanical device used to trim fingernails and toenails. Two common varieties are the plier type and the lever type. Both are common household objects. Most nail clippers usually come with another tool attached, which is used to clean the dirt out of nails. A nail trimmer often has a miniature file fixed to it to allow rough edges of nails to be manicured. Nail clippers occasionally come with a pocket knife or a nail catcher.