Oregon Gator G5 Mower Blade is an optimum combination for a wide range of mower units. Features a high-lift contour, as well as two additional, premium features to improve performance and retain blade sharpness. Aggressive blade angle increases air flow to push debris up and out for superior bagging and side discharge. Computer-controlled straightening gives a cleaner cut, especially on multi-blade decks, and reduces vibration. Meets OEM specification standards. 0.203"" thick. 20.5""L x 3""W. 15/16"" center hole.