This is a A-19B25 Blade, Finishing Mower, LH PN: 19B25Main Description As Following : A-19B25 Blade, Finishing Mower, LH P.N: 19B25 C to C: N/AHole Diameter: 0.531"Outer Hole Diameter: N/AOverall Length: 25"Rotation: CCWThickness: 0.250Width: 2.50" Found in Section & Models : Hay Tool Parts > Lawn Mower Blade, Big Bee MOWER, FINISHING: SEVERAL (6 Ft. Finishing Mower) Associated Items : New Also This is An Aftermarket Product And : C to C: N/A Hole Diameter: 0.531" Outer Hole Diameter: N/A Overall Length: 25" Rotation: CCW