7-FINS ONLY Replacement Blade for Nutri Ninja Auto iQ BL480 BL490 BL640 NN100 Series Blenders by Best Accessories

It fits on the container, and fits into the motor, but it is too large to trigger the motor. In other words it is a worthless hunk of crap because it doesn't work AT ALL. Good thing,too, because I don't want to taste industrial oil when I blend. I will try again with a different manufacturer!

This blade appeared to "fit" the Ninja Auto IQ however, it made the most awful loud sound while blending and after using it for less than 2 weeks it locked up and started smoking. I have now done what I should have done in the first place which is to buy another replacement but this time it is the Ninja brand and twice the price Lesson learned.

Bought this because my original Ninja blade was well used, worn out, and over a year old. Started to use this new one and after only a dozen uses, a brownish/green ooze, most likely grease from the bearing, started to come out during use. Luckily none of this grease went into my smoothies, so I hope. Unfortunately, the return period ended weeks ago and only found time to write this. Will I buy this same product again...no!!

 Purchased for my mom. She blended for less than a week and ninja pro suddenly emanated black smoke and stopped functioning. Mom then attempted with used her Blade, but blender produced smoke and stopped after a few seconds. Mom switched to her old blender. I just found out. On closer inspection the silicone covers on 3 blades are torn and the plastic material falling apart and when touched grainy plastic shavings fall off interior. I'm very upset and mom was also upset, but she was afraid to tell me. I just bought a Ninja chef; at least she can use the tumblers and 48 Oz pitcher accessory she purchased

Although it is the correct replacement blades it is definitely NOT the same quality as one that comes from the manufacturer. After a short amount of usage (less than a month) the blades started becoming lose from the housing at the base. So much so that when you go to use it, it leaks. A set of blades that are lose and not sealing properly on a blender...it's a bad combination. Can't use my blender now which is a part of my DAILY routine, until I get another set. Disappointing.

While it fit perfectly and worked very well for about 2 monthly, it has worn out. The original part from Ninja lasted almost 2 years. I use mine to make smoothies every night so it gets a good work out. This part is not for heavy use.

Purchased on May 16, 2018, lasted until late June 2018, a whole month and a half . After sitting for a couple days I didn't notice that it would barely turn when I hooked it up, I am surprised it didn't burn up the motor. Unsatisfactory Junk

It works, but not as well as the original blade. I’ve noticed too much friction leading to a burning rubber smell. I’m worried it is going to break my blender. I not longer use it. To be fair, I did put it through the dish washer and that may have contributed to the friction. If you buy this hand wash only.