The Ferris Mulch Kit for the 400S model with a 48" deck includes baffles, a blockoff plate, three mulching blades, and all necessary hardware for easy installation. It upgrades your mower into an efficient mulching machine, eliminating the need for bagging. The precision blades finely chop grass clippings, returning nutrients to the soil and promoting a healthier, greener lawn. Built with durable materials, this kit ensures long-lasting performance and reliable results.