MaxPower's 561154B includes 2 hi-lift blades for 36" ExMark and Toro mowers. Replaces OEM numbers 109-6873-03, 140-1242, 103-6402, 103-6402-S, 50-2306. Measures 18" L and 2-1/2" W with a 15/16" centerhole diameter. 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. Proudly made in the USA.