The 4" wide leg pads and extra wide 7" back are constructed from memory foam that conforms to the back

Enhanced hardening to keep the blade sharper and more durable

Abrasion-resistant construction

Brush - 42 Hd

Oregon 91-544 Low Lift Sand Blade for 72" Bush Hog, Country Clipper, Grasshopper - 88773, 320250, 320251, 320252, 320253, 320254, 320255, 320323 SpeedCut The 4" wide leg padsSpecifications Blade Width 2. 50" Thickness 0. 250" Blade Length 25" Center Hole Size 1 2" OffSet 5 16" Air Lift 3 4" The Oregon 91 544 replacement lawn mower blade is made to the exact OEM specification for optimum performance. Our blades are individually straightened and hardened to provide a consistent, cleaner cut and increase blade longevity. Product Details Center hole: 1 2" Requires 2 blades for 48" cut Requires 3 blades for 72" cut low lift