🍓[Attention]This is 4inch 7fins male blade ,Take out a credit card and compare it with your machine as shown in the figure. If the length of the credit card is almost the same as the diameter of the machine, please buy 3.35inch blade instead of the 4inch blade 🍐【No Suitable for】Not for 16oz cups or blender comer with 3.35 inch blade such as these model: BL660, BL663, BL740, BL770,BL771,BL773CO,BL780,BL780,Bl810,BL820,BL830. 🍎【No Suitable for】NOT for 6 fins blender,NOT for blender come with female blade.NOT for Ninja ss series such as ss101,ss351,ss300, ss151 etc.