Blade Assembly Only for Nutri Ninja Blender 900 1000 Auto iQ BL450 BL480 BL481 Nutri Ninja Blender 900 1000 watt Bullet style Auto iQ 1000 BL450 BL451 BL452 BL456 BL480 BL480W BL481 BL482 Please count the number of fins on the bottom of your blade. These have 6 fins on the bottom Some Ninja blades have 7 fins, these have 6 fins!