[Compatibility]-- The bl 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 different, do not purchase this item. [NOT Compatible with]-- This bl 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 bl cups. [6 Fins Bl Accessories for Ninja]-- Made of high-strength stainless steel, the pro extractor blade is designed for Ninja bls to deliver powerful vitamin and nutrient extraction, ideal for making smoothies, frozen drinks, and various 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 in the replacement blade when received. Two additional gaskets are included for future replacements. Do not install more than one gasket at a time. Each blade requires only one gasket. Ensure the bl cup and blade are properly assembled before each use. Color: As shown Material: Plastic Package Contents: 1 x Bl Blade 2 x Rubber Gaskets 1 x Clean Brush (color may vary, no specific color guaranteed) Only the items listed above are included. Other products are not included. Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the photo and the actual product. Measurement may vary by +/- 1-3 cm.