Oregon 96-322 Toro and Exmark Gator Mulcher G3 Replacement Lawn Mower Blade 18 inch 18" Length, 15/16" Center, 2.5" Width, 0.203" Thickness, 1" Lift Replaces Exmark #103-6387, 103-6397, 103-6397-S, 116-5175, 116-5175-S, 116-5176, 116-5176-S, 103-6392, 103-6392-S, 103-6402, 109-6873, 103-6402-S Exmark (3) for 52" Cut, High Lift Blade, Metro HP, Turf Tracer Replaces Toro #109-6873. Equipped with X-Tended Cutting Length to improve cutting efficiency and have up to twice the cutting length. Great for Mulching.