BM23978: Grass Mulching Attachment, High Capacity, 60 inchJohn Deere mulching systems use durable blades designed to chop grass into very small particles. The mulch that is distributed across the lawn will turn to feed, eliminating the need for bagging. This improves efficiency by reducing cleanup time. A MulchControl kit for 60? inch High? Capacity decks. For both residential and commercial users.