4 Pack Overnight Oats Containers with Lids and Spoons 16 Oz, Wide Mouth Mason Jars with Measurement Marks, Airtight Leak Proof Container Jars for Yogurt, Milk, Cereal, Fruit, Salad, Meal Prep

The item is surprisingly heavy, due to being made of rather thick glass. This glass appears to be high quality. The lids are grooved to screw onto the mouth of the jar. They are made of some sort of solid rubbery plastic type textured material. Maybe some silicone? Either way, it is solid and sturdy. Inside the lids is a groove for a rubber or silicone ring seal, which does come in the package, but you will have to insert it into the groove yourself. On the outside of the jar, just under the mouth area, is a band appearing to be made of a silicone type material. This band has a notch for holding a spoon. The spoon also comes with the jars, 1 spoon per jar. They are small, made of wood or bamboo.We did use the jars to prepare a parfait, which is a homemade mix of yogurt, fruit, oats, and granola. After putting the lid on fairly tightly, we shook the jars alot to help mix the yogurt better throughout the gaps in the fruit and granola. That worked out fairly well. I saw no hint of leaking while shaking the jars, even when briefly upside down. I am happy with this item, and now have a fun way to prepare and eat another type of healthy food I otherwise might not have given much thought to. 5 out of 5 stars.

While these are advertised as 16oz containers, it should be noted that in order to use all 16 oz of volume, you need to fill to the very top brim of the glass container. The last measurement listed within a safe (non mess inducing) distance from the brim is 10 oz. So, if you want to get all 16 oz, contents will likely leak over the top is there is any liquid. If you only need 10 or 12 oz, then these will be the perfect size. I love that they come with bamboo spoons instead of metal as I hate the clanking sound of metal on glass. The pieces are really easy to take apart and put back together for cleaning, and there is a rubber seal for the lead to prevent leakage or loss of temperature. I'm not much into the overnight oats trend, but I do prefer using glass over plastic for lunch or leftovers, so I am quite satisfied. Overall, these are great, simple food storage containers that I expect to get a lot of use out of.

I would have given this product 5 stars, because I really like it and will use it often. The reason I felt I couldn't, is because it doesn't really hold 16 oz. Filled to the top, it holds a scant 14 ounces. That said, it's still perfect for one serving of overnight oats, pudding or leftovers with room to spare for berries or anything you want to mix in. One serving of chia pudding fills about half the jar.I like that the container is sturdy, Mason jar type glass, and the top, with an inner seal, screws on very securely. No leaks and I tried it with water, overnight oats and chia pudding. I had another brand of something similar, with a top that just pushed on and it leaked all over the place in my husband's lunch bag. It's dishwasher safe, although I wouldn't put the spoons into the dishwasher, but I don't really use them, since I use it at home. They'd be really handy in a lunch box or bento box though.I got it for overnight oats and chia pudding, but I find myself using it for all kinds of things. It's really handy for anything that needs to be shaken like salad dressing, for instance. I keep my homemade balsamic vinegar dressing in one now and don't have to worry about it leaking when I shake it.

When this product arrived and I saw how it was packaged, I was not surprised to hear the sound of broken glass. You would think anyone manufacturing glass items would have better breakage protection in the product box. Already I was down to one container. Unfortunately I threw the broken one and its pieces away before I realized that the remaining gasket I had was warped to the point of being barely usable. This holds 15 ounces if you fill it to the absolute brim, so in practical use it holds maybe about 13 or 14 ounces. The lid seems okay although I won't trust it to not leak since the gasket is messed up. The wooden spoon is fine, and the ring to hold the spoon keeps the spoon in place reasonably well. I wish this item was of better quality and that they had packaged it better to cut down on the likelihood of pieces breaking.

These are terrific little jars for a variety of different food options. Obviously overnight oats works great as the size is just about perfect for most pre-made packages and it's a great size for parfaits. The jar has measuring units built into the jar and the top has a holder for the small wooden spoon. The spoon is a cute addition but is not very practical, given its small size. However it works well if you are using it on the run. The lid also hasn't leaked with a few uses, so it has been working well.Overall these are a solid little jars and a great value for two jars. The spoon is only useful in a few situations, but that doesn't negate the usefulness of the jars themselves.

My wife and I eat overnight oats every day so these are very useful to us. We had been using a couple of plastic containers from Chinese carry out :) so having glass containers like these are nice. The glass is nice and thick - they feel substantial - not thin and cheap. The lids are nice too - unlike a metal mason jar lid, these lids are easy to grip. I thought the jars might be a bit too big (too many ounces) but they aren’t - they are sized right for the amount of oats, berries, and almond milk we use - just a little space at the top, which is good. The jars have easy to read ounce measurements on the side. The spoon holder is not something my wife and I will use but if you pack your lunch they’d be very useful - I tried them out and they seem to hold the spoon securely when the accompanying strap is used. One of the included wooden spoons came cracked in the box - it was probably rough handling from the carrier because the box had a dented corner. My wife and I are happy with these and recommend them for your overnight oats!

These jars are just what is shown in the description. They are cute with their attachable spoons, but the spoons are not covered in any way to keep them sanitary. This is really no different than a regular canning jar with a plastic cover. The spoon holder is put on separately.