6 Packs Gaskets 3.22 Inch for Ninja Rubber Gasket Replacement Parts Seal O-Ring White for Ninja Single Serve Blender Blade 6 Fin Compatible with Nutri Ninja BL660 1100w 1500W BL770 BL740 BL780 BL663

Perfect fit. Love the tool as it makes removing seal for cleaning and replacement super easy. Haven’t had any issues with leaking. Good purchase.

I currently have a Ninja and the smoothie cup, I need to change this part. I was a little doubtful if it would work, but it fits perfectly. The price seems fair for the quantity it comes with, and it also comes with accessories to properly clean the shaft part.This is super practical because it usually smells and gets moldy easily. It's super easy to put on.

Perfect fit. The tool included to remove the old one is nice too. Look at the model it fits before you buy. I bought the wrong ones first. Function just like the original. No leaks.

This is a life saver! I hated trying to get the seal out of the lid for the blending cups! The little tools here make it so quick and easy to remove. The little brush makes cleaning the top street free. I tossed the original seal and these fit perfectly! It is worth the price you pay for all you get in my opinion.

Fitment is good

If you are like me, our household has been using the “bullet” style blenders to make smoothies for the past few years. I always wondered why the cup would have a smell sometimes when closed even despite being cleaned, and I realized that our gaskets needed replacing. The first time I pulled out the gasket on our blender I was shocked, moldiness and gunk growing. Now I pull out and clean the gasket every time I make a shake or smoothie, and if I see them start to wear out, I just replace them.

Replacement by user is easy.

Good fit and it saved my blender