Upgrade your lawn maintenance with Abbyisd's professional-grade replacement blades. Each 2-pack set delivers exceptional value, featuring precision-engineered 21-3/8-inch blades crafted from high-carbon steel for unmatched strength. The advanced laser-cutting technology ensures razor-sharp edges that slice through grass cleanly, promoting healthier turf growth. Compatible with Jo hn De ere AM137327, AM137329, and AM137330 models, these blades are ideal for residential lawns, golf courses, and park maintenance. The anti-corrosion coating provides year-round protection against rust, while the reinforced center hole design prevents slippage during operation. For optimal results, pair with Abbyisd's blade balancer (sold separately) to achieve vibration-free cutting. Trust Abbyisd – where durability meets precision.