I almost gave up on these. I wanted to love them because the concept is so cool. I kept twisting and it wouldnt lock down like it didnt fit. I got discouraged by other reviews. Then, in a fit of kitchen rage, I pushed firmly down on the ring and lid trying to force it to seal and the lid popped into the ring head space. I honestly thought I broke it at first because it made a horrible noise. But, now it fits like it is supposed to and I dont have any issues with leaking or ring fit. For reference, these are regular mouth Ball brand mason jars and lids. Hope this helps someone else!I gave a 4 star because I really should not have to be in a fit of rage to make something work as intended.

Definitely need to get more of these click in tight and work great to drain all the contents

I usually get the largest of creamers cuz it's a good deal but it's also heavy as heck to get out of the refrigerator, two and three times in the morning. So I got this little guy and it is the perfect answer. It pours a little slow which to be honest makes me feel gluttonous because I get all the way up to four Mississippi's which is the same as two out of the large container. I'm going to get another for my homemade vinaigrette. I've sent it to the dishwasher a few times no worries, looks brand new.

Not worth the postage it required to be sent. poorly made. doesnt allow the metal band to screw on properly ..I threw it out. Don't buy this product. its worthless..

Took a lot of work to get the lid to fit inside of the jar ring- it's not leak proof at all. A mess when pouring and filling.

We use mason jars for all kinds of storage. I have bought 2, one for cooking oil and one for soy sauce. Everything works as specified, no complaints. I am happy I do not need to keep using the enormous jugs!

I love that I can use this on any regular mouth jar to make buying bulk oil easier to use. However I don't know if it's just mine or all but the cap doesn't stay in. It did a better job staying in until I regularly used the oil. Then the oil that stays inside the spout kept the cap from staying closed. Otherwise this works great.

Really like these lids and the price is great!.. Most of the time you can't find these in the stores.

Once you get the black cruet seated correctly in the band of the lid, there is a nice tight seal. Takes some time and a lot of manuevering but it does sit in there. My biggest issue is when using the cruet, the plug doesn't stay closed because of the oil around the inside of the rim. That was the main reason I wanted these, to keep things out of my oil dispensers.

Picked this up along with a bunch of other random mason jar lids, as I don't have a great option for dispensing oil when cooking, and I tend to buy it in bulk or just large bottles that are cumbersome to use regularly.Currently I'm using a glass bottle that held coffee concentrate, because it had a bottle cap that limited the flow rate nicely and prevented backflow, which tends to be the issue I face with oil containers. Problem is that cap doesn't come out, and it's nearly impossible to fill the bottle even with the ridiculously tiny funnel I have.Obviously this fixes that issue, as it's on a mason jar, and I could pour oil straight from the gallon container with no worries, and have it filled in seconds. Pouring from the spout is also very nice, I didn't notice any backflow, and the gaskets on the rim keep it sealed on the jar itself. While that seal is strong, the end cap doesn't fit perfectly, so that part isn't leak-proof, if that's a concern.Other than that not much to say, it works as expected and looks pretty decent. Possible you may need a plastic rim instead of a metal one, but I haven't had it long enough to know if rust is going to be an issue.

It was working fine till I put it in the dishwasher. But then I guess it warped and now it doesn't work because it won't fit in the lid rim.

I really liked to be able to have this to use for homemade dressing or leftover liquids and keep them easy to use again. However, if you do not hold the lid closed while shaking or turning sideways or upside down, it tends to pop open. Also, be sure to tighten the lid very firmly or else leaks around the lid happen. Not fun, but now I know to keep a hold when shaking. Not bad overall for the price.

Wife and sister in law love them!

We use this for an easy pour, easy clean maple syrup jar. Great product!

I love these lids! They make pouring out of the jar extremely easy. I highly recommend

I really wanted to love this gizmo. My orange spout stays closed but I can not get it to seal tightly as shown in so many of the videos. The jar ring will just not screw down on with this spout. Also, the seller included a card with religious propaganda on it that I did not appreciate getting in the package. Do not buy this

It will not stay closed

We use these for syrup at the restaurant I work at. They seal really well and have held up in the high temp dishwasher. They drip a bit (it's syrup!) but they are easy to clean. They took some muscle and finesse to get them to pop into the mason jar lid, but they are very secure once in place.

Easily controlled pour. I keep it right by the stove for easy pour olive oil, for cooking, for drizzling on salads.

Easy install. Snapped right in. I didn't have freeze them. I didn't have to struggle as some. Very easy. Leakproof. Seal nicely.I'm really happy with them and I'd buy again. Completely recommend these.