Oregon 91-438 Kubota Replacement Lawn Mower Blade 20-9/16-Inch 20-9/16" Length, 1-1/8" Center, 2.5" Width, 0.250" Thickness, 1-1/8" Lift Replaces Kubota #70000-25001, 76539-34330, 70000-00602 need (3) for 60" Cut on models B1550, B17"50, F2560E, F3060, G1900, G2000