MaxPower's 561311B includes 3 blades for many 61 in. cut Snapper mowers. Also fits Scag, Ferris, Simplicity, Gravely, Bobcat and other mowers. These blades replace OEM #'s Snapper/Kees 5101755, 5101755BMYP, Bad Boy 038-6080-00, 5208425, Ferris 15208425, 5020842, 5020842S, 5101755, 5208425, Great Dane C39949, Husqvarna 539-105711, Lesco 050170, Scag A48111, 48111, 481708, 482879, Windsor 50-3160, Wright 71440003. Each blade measures 21 in. L and 2-1/2 in. W with a 5/8 in. center hole. Check your owner's manual to verify that the OEM number of the blade being replaced matches one of the OEM numbers provided for this item. Maxpower blades are manufactured to meet or exceed OEM specifications.