Premium materials: Crafted from heavy duty reinforced polyester oxford fabric, this bag resists tearing, abrasion, and water damage Withstands piercing grass clippings and outdoor conditions while remaining Important Notes: Bag only product ( frame not included) Always verify your models ' compatibility using the manufacturer ' s manual before purchase Efficient Grass Collection: Effectively catches clippings ejected from the deck, reducing scattered debris on your lawns Minimizes manual cleanup and streamlines mowing for faster, tidier yard maintenance Compatibility and Fit: Specifically designed for 21 inch lawns mowers, this grass catcher bag fits 11A / 12A series ( 2004 2021 models),, and other major brands Replaces original part numbers like 964 04117A / B / C and 664 04034 for seamless integration Sturdy Construction: Engineered for long lasting with reinforced stitching and sturdy fabric Handles frequent use without wear, making it ideal for residential or light commercial mowing applications, Manufacturer: Kaeltsyn