3 blade set for 46" deck. 1" star center hole. 3-in-1 mulching, bagging, side discharge. Contains: One 14-7/8" rider blade and two 16-9/32" blades. Fits MTD automatic drive step through frame models 1999 and after. Fits MTD, Troy-Bilt, Yard-Man, Huskee, Yard Machines, and Bolens. Replaces OE# 742-0612A, 742-0612, 742-0611A, 742-0611, 942-0611A, 942-0611, 942-0612A, and 942-0612.