Closing the Advanced Chute System completely prevents discharge into flower beds, driveways and swimming pools. In high-density areas where flying debris can damage windows, vehicles or even people, keeping the advanced chute at a semi-closed position forces debris down immediately, preventing straight line discharge at speeds of over 200 mph! Built for commercial lawn and garden professionals and zero-turn mower homeowners alike. Plus, the Advanced Chute System also turns your mower into a powerful mulching machine, perfect for fall leaf cleanup!