[Compatibility]-- The blender parts are compatible with for Nutri Ninja with Auto-iQ 431KKU480, 575KKUD450; 900W food processor BL450-70, BL451-70, BL454-70, BL455-70, 1000W BL480,BL480D,BL480-70, BL480W-70, BL481-70, BL482-70, BL483-70,BL484-70. The model number # should be identical. If any number or letter isn't the same, please don't buy it. [NOT Compatible with]-- The blender blade isn't always appropriate for Ninja units indexed below: 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. ONLY match 18,24,32-Ounce cups, NOT match 16-Ounce blender cups. [6 Fins Blender Accessories for Ninja] -- Made of excessive Strength quality stainless steel, the pro extractor blades are positive for Ninja blender to carry powerful diet and nutrient extraction to provide you tasting smoothies, freeze beverages and diverse sauces. The bullet replacement blade is pre-installed with rubber washing machine for increased seal to avoid leakage. [2 Extra Rubber Gaskets]-- Please note one washing machine is pre-installed already within the blades alternative when you get hold of it. Extra 2 Gaskets are to your alternative use in the future. Do no longer set up the additional one when verify or use. One blade choose only one Gasket. Make yes that the blender cups and blade are wisely assembled at any time when earlier than working the appliance. Colour: as proven Material: plastic Package Contents: 1 * Blender Blade 2 * Rubber Gaskets 1 * Clean brush (random colors, don't accept the specified color) Only the above kit content, different item usually are not included. Note: Light mirrored image and sundry displays may cause the color of the article in the picture slightly various from the real thing. The size allowed error is +/- 1-3cm. Dear customer, if you want to buy in huge quantities, please touch us, we can present one other preferential price.