Ninja Blender Replacement Blade, Blender Replacement Parts 7 Fins Extractor Blade Assembly Compatible with BL480-30 BL640-30 BL642-30 BN401 BN751 BN801 NN100-30 NN102 BL2012NOTEPlease confirm first that your Ninja Blender meets these three necessary conditions: 1,Your ninja blender blade is 7 fin blade(not 6 fin); 2,The bottom diameter of original blender blade is 4 inches; 3,Your ninja blender cups is 18oz 24oz 32oz. Not 16oz. Compatible WithThis replacement blade only compatible with Ninja Foodi Power Blender BL456 30, BL451 30, BL454 30 Nutri Ninja Auto iQ BN751, BN800, BN801, BL481 30, BL482 30, BL490 30, BL681A 30,