Twenty Five (25) each Left Hand and Right Hand replacement blades for Galfre / Tonutti Disc Mower, that's two full boxes of mower blades a total of 50 blades! Fits Galfre and Tonnutti Disc Mowers that have 3mm thick blades. Blades measure 110mm long X 47mm wide and have a 21mm mounting hole. Featuring dual cutting edges these blades can be flipped over for extended life, quality French made, not China knockoffs!