This is a replacement 6 fin female extractor blade part compatible with Ninja Blender Models: 900W: BL450-70 BL451-70 BL454-70 BL455-70 1000W Auto-iQ: BL480-70 BL480W-70 BL481-70 BL482-70 BL483-70 BL484-70 Specifications: Model: 6 Fin Female Blade Dimensions: 10cm / 4" (diameter) x 8cm / 3.14" (height) Material: ABS, Stainless Steel Please Note: Check the images to make sure the current blade you have is a 'female' blade. Please count your number of fins before purchasing. Please ensure that your existing blade has 6 fins. Please make sure you measure your blade as follows: The full black plastic base diameter is approximately 10cm The total height measured from the bottom of the base up to the highest tip of the blade is approximately 8cm Package Includes: 1x Female 6 Fin Blade for Ninja Blender.