The Genuine Factory Parts 42 in. Xtreme Mulching Kit allows the mower to effectively disperse finer clippings of grass while mowing. Recycling grass clippings back into your lawn through mulching is one of the best ways to help ensure your lawn receives the proper nutrients it needs to thrive. Attachments and accessories by Genuine Factory Parts are designed specifically for Craftsman, Cub Cadet and Troy-Bilt. Have confidence that they are going to help provide optimal performance so that you can get the most out of your rider and zero turn mower.