This original equipment replacement MTD deck mower blade set will fit a variety of 38 cut lawn tractors and RZT mowers built in 1997 and after. This set of blades are 3-in-1 meaning that they mulch bag and side discharge. This set contains 2 blades and the center hole is star shaped. This item is the same as 942-0610A 742-0610A and 942-0610 and will fit brands such as Troy-Bilt MTD Murray MTD Gold Bolens White Outdoor Yard Machines Yard-Man and Huskee. To ensure a perfect fit for your equipment please reference your owner’s manual. Blades are deemed a wear and tear item which means that they need to be replaced at least every season and therefore are not covered by a warranty.