The Toro 80-4430-03 Lawn Tractor Recycler Blade is designed to deliver efficient grass cutting while promoting effective mulching performance. Designed as a replacement recycler blade, it fits compatible Toro lawn tractors to cut grass and recirculate clippings within the mower deck for finer mulching. It works by creating airflow that lifts grass for a clean cut while repeatedly cutt... https://www.wholetoolbox.com/toro-80-4430-03-lawn-tractor-blade-recycler