Transform your lawn care routine with Abbyisd's professional-grade mulching blades. Engineered for homeowners seeking a lush, healthy lawn, this 2-pack set delivers superior grass recycling by finely chopping clippings into nutrient-rich mulch that decomposes rapidly – eliminating bagging and reducing fertilizer needs by 25%. Each blade is CNC-stamped from high-carbon steel (ISO 9001-certified) and undergoes anti-rust treatment for extended wet-season use. Precision alignment ensures vibration-free operation at 3,000 RPM, protecting your mower's engine. **Compatible Models Include**: - Crafts man: YT 3000, T210, T110 - Husq varna: YTH18542, LC121P, L121P - AYP: 247.299861, 247.289903 - Troy-Bilt: 14AQA1C066, 13WN77KS011 **Safety Notice**: Always disconnect spark plug before installation. Replace blades every 25 cutting hours or when wear marks exceed 2mm. Abbyisd guarantees 30-day free returns for fitment issues.