COMPATIBLE WITH: Blender Replacement Parts is a perfect fit for Nutri Ninja 900W BL45070, BL45170, BL45470, and BL45570. This is an excellent substitute for the original parts, allowing your blender to work smoothly. FOOD-GRADE MATERIAL: 6 Leaf Blade Assembly high-speed blade is made of food-grade stainless steel and sealed with silicone rubber gaskets. More Durable and has no leakage. Effortlessly create your favorite smoothies, omelets, snacks, and nut butter. EASY TO USE AND INSTALL: The installation port of these extractor blades is specially designed with thread, which is smoothed, easy to put on and take off, and perfectly compatible. One silicone rubber gasket O-ring has been pre-installed. Blender Blade may loosen during transportation, please fit it tightly in the cutter before use for best performance. MULTI-PURPOSE: Replacement Extractor Blade adopts a double-edged cutter design for chopping, grinding, and mixing foods such as oats and grains, coffee beans, fresh herbs and spices, and chopped nuts. GOOD PERFORMANCE: The unique design of the extractor blade, generates the power to break through tough seeds, thick stems, and tough skin to access the hidden nutrition inside.