Equust 5-piece Blender Cups Replacement for Ninja Single Serve 16oz Cups with Sip & Seal Lids, 6 Fins Extractor Blade Compatible with Ninja Blenders Pro BL660 BL663 BL663CO BL665Q BL740 BL770

Fits my Ninja blender perfectly and works just like the original cups. Good quality, sturdy, and easy to clean. Great value for the price.

I ordered this set on Friday 10/3/25 and received it today 10/4/25. The packaging was good. The set had its own box with all the contents tightly packed and individually wrapped and that box was placed into another box. I cleaned the everything with mild soapy water then proceeded to make my favorite protein shake. Hoping for no leaks or no weird functioning blade movement. Happy to say the quality of the stuff is great with the cup, blending portion, and sip lids all sealing very well. The value for the money spent is good since everything works! This kit worked seamlessly with my NINJA BL770 30 1500W blender.

Saw some reviews that mentioned it didn't fit, so I was leery at first. But we have the Ninja BL770 and it meshed perfectly, so no worries there. Long as you have one of the models listed in the description, this is a very solid replacement.

Fits ninja blender but there is a tiny gap below the blade and it causes so much vibration it sounds like the blender will break. Can only run blender a few seconds at a time due to this.

Unfortunately, I have an older Ninja model & the blender blades wouldn't fit in my blender. Good product but just didn't work for me!

These are perfectly lovely 16 oz blender cups. They work as you would expect and stack as well.

Perfect description

These cups fit better than the cups that came with my NINJA. I’m sure the original cups are defective because the original blade top is too big for the original cups. When these EQUUST replacement cups came, the first thing I did was to screw the blender top on to each cup- effortless. Then I put them both on the blender base. They work perfectly. I have NINJA PROFESSIONAL 1500 Watts Model BL770.