The MTD 964-04117C Lawn Mower 21" Grassbag Assembly provides an efficient, large-capacity clippings collection solution to ensure a clean, debris-free finish across your lawn. This complete containment unit functions as the primary rear-catch repository for walk-behind mowers. It works by attaching directly to the rear discharge chute, capturing grass clippings and vacuumed yard debri... https://www.wholetoolbox.com/mtd-964-04117c-lawn-mower-21-grassbag-assembly