2-n-1 Blade replaces MTD/Cub Cadet 742-05052A, 942-05052A. Side discharges and mulches. Fits 50"Lawn Tractor and RZT Mowers, 2015 and after. Fits Cub Cadet LX50, RZT-L50, Massey Ferguson MF50-22ZT, Rover RZT-50. Made in the USA. Rotary 15-15454. 6 point star hole. Takes three blades for 50" cut. Sold as set of three.