AUC16091: Grass Bag Hopper Kit BagDurable material: Made from long lasting polyester, these bags ensure a prolonged lifespan and resistance to wear and tear. Easy access: Hinged hopper top and replaceable plastic windows allow for quick and convenient access to bags, making it simple to monitor and empty when full. Compatibility: Designed for use with various John Deere Material Collection Systems, including Power Flow and Rear Grass Bagger, for efficient lawn debris collection.