Grade B refurbished clippers are sold with an one month manufacturers warranty. This warranty covers manufacturing defects, but does not cover wear and tear items such as cables, switches, drive levers etc. Grade B machines have been used and will show signs of wear and tear. All refurbished clippers from Master Service have been serviced and repaired to factory standard by our fully trained engineers. All faulty parts will have been replaced and the clippers are supplied in a plain box without a blade.