The STIHL 61517608300 Mulching Kit is a genuine OEM accessory designed to convert select STIHL lawn mowers into mulching machines. This complete kit includes a specialized mulching blade and a mulching plug, allowing grass clippings to be finely shredded and returned to the lawn as natural fertilizer. It is specifically engineered for compatibility with STIHL RM 2 RT and RM 2 RC series lawn mowers, ensuring optimal performance and a clean finish. The kit facilitates efficient grass recycling, promoting healthier turf and reducing the need for bagging.