Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Could this be used to help pour from a mason jar or is it just for sipping?
Document: Four stars, simply because I feel the price could/should go down a couple of bucks. That said, I love it enough, I will likely order a second soon. BPA free and made in the USA also helps justify the higher price. Drinking from a mason jar "sippie cup"  certainly gets you noticed, but it's fun and very functional.
Good idea, but makes jar look like a Sippy-Cup&#8212;may garner some snickers and comments from co-workers if used in your workplace.
This is such a great idea. We love drinking out of our mason jars in our family, and we always wished we could take them on the go. This lid fit perfectly and worked perfectly. I highly recommend it!
They were  great for a laugh, as they promote their "Straw-Tek" technology, which is a hole. Diamond shaped, but nonetheless a hole. The question is, what is the benefit of drinking through this, as opposed to just the jar without a lid? There is no way to prevent spills if you knock it over and I wouldn't say it's more comfortable than just drinking from the jar. The only advantage I could see is that it would be easier to drink from your jar while driving.
Not worth almost $10 but I guess we all got used to getting china made stuff at seriously low prices. If this is made here, I suspect thats why it cost more? Don't expect to get the ring to hold it on with this product. All you get is the sippy top. Works well, no leaks and when I wanna shake the contents of my jar, I cover the holes easily with my fingers.
This is a really simple way to turn a Ball jar into a drinking bottle. It's great that the tops can be used with any properly fitting Ball jar or equivalent, and if the jar breaks they are easy to replace without having to buy an additional top. However, for what it is (a piece of molded plastic), the cost is a bit high. On the plus side, it should last indefinitely and can be swapped between different size jars that have the same size opening.
Sister's in law used these for themselves or on small jars for sippy cups and loved the idea. Happy with the purchase and kiddo likes it too.
I plan on bringing my morning smoothies to school in my jars and looking forward to having the help to keep it contained with Cuppow. My first drink will be a concoction of coconut oil, almonds, spinach  and kefir. Or, who knows, whatever strikes my fancy.
I had been looking at these lids for awhile before I broke down and bought them. I am extremely happy that I did. They work well and help prevent me from spilling things. I don't use straws in the opening of the regular sized lids but it was a nice touch.
I was very disappointed in this product. It's very flimsy, cheap feeling and impossible to use with a drinking straw. It was a gift which I sheepishly gave, despite my misgivings and I don't think it was ever used. There are screw- on, pop up lid products for canning jars to use for pouring or to use with drinking straws and are more well suited for multiple uses.
Answer: It isn't lipped like a measuring cup but liquids do pour out fairly neatly.