Silicone gasket won't stay in the blade. If you tighten it down enough to not leak, the gasket sticks to the cup, that is if you can get the blade off of the cup.Pros: It looks like a nutribulletCons: Everything else

I was very disappointed...My original NutraBullet motor is in excellent condition..all I needed was this replacement blade set..but it wouldn't accept any of my containers they have some kind of silicone rings on them...wish they had replacements for my 900 bullet...I gave them to a friend who has a new model..waste of money...fit hers fine...I had to give them 1 star because..I couldn't submit my review with out tem..

Replaced the gaskets on my old blades. They worked great on the first use but leaked thereafter and of course made a mess in my nutribullet. One of the new blades will not screw on to the cup at all. These replacement parts are a disappointment.

Won't rate durability as i have not used them very long yet. My original gasket broke and some grey shredded under the blade, my fault. It sat a year before use.

No issues with these replacement parts .They function just like the original blades .

Thanks!

Love that I can buy replacement parts instead of having to buy a whole new unit. We have 6 people in the household who use our Nutribullet daily, so it gets well used.

Does not fit that much and started to leak from the second usage.