🍹 Nutri Ninja Blender Series Compatible Grey 2 Pack Sip & Seal Lids: BL660, BL663, BL663CO, BL665Q, BL771, BL773CO, BL810, BL820, BL830, QB3000, QB3000SSW, QB3004, QB3005 Review

I was afraid they wouldn't be strong enough for my teenage girls but they are just as good as the originals. Good product.

We received an open top and a closed top, not what was in the picture or description. False advertising and expensive for what it is.

Useful but not as durable as those that come with the Ninja. Also, the only marked measurement is 16 oz. The previous model had the designations 8 oz and 16 oz.

I was disappointed with this purchase. I was expecting to get 2 lids with a seal. I received one with a seal and one with a regular lid. The one with the lid is good, but it turned out to be an expensive purchase for just one lid.

I ordered this product which was to come with 2 Sip & Seal Ninja mug lids. One of them is exactly what it should be and the other is similar to those that come with cups, with no seal for the mouthpiece. So the order was only half correct. On the plus side, they're perfect for mugs. I'm just disappointed that I didn't get what I paid for.

They make my smoothies easier to transport and prevent spills. The design of the cup is just great. I wish they were a little more stackable to save space in my closet. Although the lid design itself isn't the best. They're really hard to take off and I'm afraid I'll break the little valve that closes the drinking hole if I take them off. They are also very unpleasant to drink from; an oddly shaped hole in the lid. All in all, I can drink my smoothie in the car on the way to work and toss it in