The lid latches into place. My wife has trouble getting the lid off. She can’t grip it the way i do since she has longer finger nails than I do. It would be easy to file odd the small ribs that latch the top to the bottom.I'm not sure if there is a special way to use this storage container but for me it's usually hit or miss. Sometimes the avocados look as good as new when stored overnight but other times they turn black on the top. The storage container seems to work alright if you use it for a few hours.I have to say I'm super impressed by this avocado saver. This picture was two days after I put the avocado in the container (a lil mushed on one side from when I cut it originally) but I am fully impressed and it's like this everytime I use it! 100% worth it! Would buy againThis little kitchen accessory is amazing and kept my cut avocado fresh for 3 days. We eat tacos and taco salads often in our house. We would often waste avocado but not anymore thanks to this avocado saver.The avocado pod seems nice and solid. I have no idea if it does the job yet because the first avocado half I tried to put in it did not fit!It’s just ok, it’ll keep your avocado ok for a day but any longer forget itPeople have unrealistic expectations for these avocado keepers. There are tons of reviews wherein the writer is complaining about how these devices don't do anything better than a plastic bag. They're probably right and the reason is that the mechanisms of preservation in the bag and this device are exactly the same.The goal of these keepers is to minimize air to avocado surface area contact, so as to minimize oxidation. They both do exactly the same thing, so you should expect similar performance. This device is useful because it helps preserve, but also keeps my soft avocado safe in a hard storage case. This is a hard case that protects the avocado, doesn't waste or dirty up a bag, is really easy to clean, and preserves an avocado for probably about 2 days if you get a good clean cut and smooth surface on it. Is it going to prevent 100% of avocado oxidation even over a 24 hour period? No, it won't. But nothing will, so get over your complaints. This thing costs $4 and does a great job of holding, protecting, and preserving an avocado half for the short time you need it toHad to squish a large size half avocado to make it fit. Forget about storing 3/4 or more of an avocado.The good thing is whatever fits, stays fresh for sureI bought this, and others in the range, firstly to try and avoid 'losing' half an onion here, and half an lemon there in the bottom of the vegetable draw in my fridge, but secondly because even though I might have known it was there, hiding, wrapped up in cling film, no one else in the family would realise. With these colourful 'pods', you can keep them in the cupboard when you don't have left over halves of things, but then when you need them they stand out on any shelf in the fridge for people to know there's something left over in there they can use up. I've got this one (although I seem to only put red onions in it, so I'll have to get the red onion one too!), the tomato one and the lemon one.The pods are quite large, and can take either one neat half, or left over wedges quite comfortably. I still wrap my left over items in cling film, just to keep the inside of the pod clean, not because I'm concerned odours might escape into the fridge - the lid of the pod screws onto the base so firmly I don't think that would be a problem - but I must admit I haven't tested that out (maybe other users of this item will have more details on that).They do have one big disadvantage, one bit of impracticality, over something that does the same job but is made out of boring, see-through plastic, and that is you can't see that there's anything inside it just by looking! Obviously whoever has put the item inside will know, but other people in the house won't know unless you tell them - they can't see 'in passing' that there's half a tomato or whatever sitting waiting to be used up, and might well search out a fresh, whole tomato, only to find (when they themselves then have half left over and want to store it in the lovely novelty holder) that there was already one in there!So, they're nothing earth-shattering in terms of what they are or what they do, but they are a bit of fun for your fridge if you just want to have a change to have some plastic storage that isn't a boring old 'click-shut' plastic box!I can only assume the good reviews are from people who are happy enough to pay for a cute novelty, with no expectations that it should do what it claims.My fridge smells potently of onion whether I use this flimsy pod or not. Which isn't a surprise because the lid fits super loosely, with no seal of any kind, so despite the "odour free" claims, that was never on the cards.I bought this, and others in the range, firstly to try and avoid 'losing' half a tomato here, and half an onion there in the bottom of the vegetable draw in my fridge, but secondly because even though I might have known it was there, hiding, wrapped up in cling film, no one else in the family would realise. With these colourful 'pods', you can keep them in the cupboard when you don't have left over halves of things, but then when you need them they stand out on any shelf in the fridge for people to know there's something left over in there they can use up. I've got this one, the brown onion one (although I seem to only put red onions in it, so I'll have to get the red onion one too!) and the lemon one.The pods are quite large, and can take either one neat half, or left over wedges quite comfortably. I still wrap my left over items in cling film, just to keep the inside of the pod clean, not because I'm concerned odours might escape into the fridge - the lid of the pod screws onto the base so firmly I don't think that would be a problem - but I must admit I haven't tested that out (maybe other users of this item will have more details on that).They do have one big disadvantage, one bit of impracticality, over something that does the same job but is made out of boring, see-through plastic, and that is you can't see that there's anything inside it just by looking! Obviously whoever has put the item inside will know, but other people in the house won't know unless you tell them - they can't see 'in passing' that there's half a tomato or whatever sitting waiting to be used up, and might well search out a fresh, whole tomato, only to find (when they themselves then have half left over and want to store it in the lovely novelty holder) that there was already one in there!So, they're nothing earth-shattering in terms of what they are or what they do, but they are a bit of practical fun for your fridge if you just want to have a change to have some plastic storage that isn't a boring old 'click-shut' plastic box!Just what I needed. Perfect for storing leftover avocado for another day.I have purchased other items from this range. Good for keeping Parmesan or indeed other cheeses fresher for longer and being clear you can see how much you have before re-purchasing saving duplicate items when shopping and thereby reducing wastage and money