1.Compatibility: This 6 blade replacement is designed for kitchen mixing systems and is suitable for 1100W, 1200W and 1500W power mixers.It fits 72oz blender jars only, Compatible with Ninja BL610 BL770 BL660 BL640 BL642. Make sure that it's compatible with your blender model before purchasing. 2.Premium Food-Grade Stainless Steel: Crafted from food-grade stainless steel, this blade is BPA-, corrosion-resistant, and for everyday use. Its sharp, high-hardness design efficiently blends, chops, and crushes ice, effortlessly handling everything from fruits to tough ingredients. 3. and : Manufactured with top-quality craftsmanship, replacement blade enhanced durability, reducing the need for frequent replacements. Extend the life of your blender with this high-performance accessory, ensuring long-term value and reliability. 4. and Maintenance: Designed for quick and Hassle-replacement, the blender blade installs in seconds—no professional skills required. Its scratch-resistant finish makes cleaning simple and prevents food buildup, saving you time and effort in maintaining your blender.