The MTD 731-04651 Lawn Mower Plug Mulch Kit 48 helps convert grass clippings into fine mulch for improved lawn care. This kit is designed to block the mower’s discharge opening, allowing clippings to remain under the deck where they are repeatedly cut into smaller pieces. It works by keeping the grass circulating within the cutting area, promoting even distribution across the lawn. Bu... https://www.wholetoolbox.com/mtd-731-04651-lawn-mower-plug-mulch-kit-48