[Compatibility]-- The blender parts are compatible with Nutri Ninja with Auto-iQ models 431KKU480, 575KKUD450; 900W food processor models BL450-70, BL451-70, BL454-70, BL455-70; and 1000W models BL480, BL480D, BL480-70, BL480W-70, BL481-70, BL482-70, BL483-70, BL484-70. The model number must be identical. If any number or letter is not the same, do not purchase this item. [NOT Compatible with]-- This blender blade is not suitable for the following Ninja models: BL450-30, BL451-30, BL454-30, BL455-30, BL480-30, BL480W-30, BL481-30, BL482-30, BL483-30, BL484-30, BL660, BL663, BL740, BL770, BL771, BL773CO, BL780, BL820, BL830. Fits only 18, 24, and 32-ounce cups. Does not fit 16-ounce blender cups. [6-Fin Blender Blade for Ninja]-- Made of high-strength stainless steel, the pro extractor blade is designed for Ninja blenders to deliver powerful blending performance for smoothies, frozen drinks, and sauces. The replacement blade comes pre-installed with a rubber washer for a secure seal to help prevent leaks. [2 Extra Rubber Gaskets]-- One washer is pre-installed on the blade when received. Two additional gaskets are included for future replacement. Do not install more than one gasket per blade. Always ensure the blender cup and blade are properly assembled before use. Color: As shown Material: Plastic Package Contents: 1 x Blender Blade, 2 x Rubber Gaskets, 1 x Cleaning Brush (color may vary) Only the items listed are included. Note: Light reflection and differences in display screens may cause slight variations in color between the product and the image. Measurement may vary by +/- 1-3 cm.