Premium Monka 3-in-1 Stainless Steel Lunch Box Set - Leakproof Metal Bento Container with Lids for Kids & Adults - Healthy Food Storage for School, Office, Picnics & Outdoor Activities - Eco-Friendly Blue Lunch Box

Just can’t open it! I read all the reviews and still bought it thinking how hard can it be. Serves me right. Now, I am stuck with this box. I want to return it but can’t.Delivered on time. Looks good. We used similar one in the past. Bought another set.Ordered 2 different sets of metal containers (others with tops that fold over sides to seal) to pack food when traveling. Kept this set because took up less space than others with larger lids. Seals on these are nice & tab you lift to let air out creates good vacuum seal to prevent leaks. I dont use them for soups & other very liquid items, but theyve kept sauce from coleslaw & fruits from leaking. When cleaning by hand, have to make sure to clean seals well & time will tell if they hold up. Like how they fit together when storing. Worked great on my trip.I place the empty bowl not the cover on the toaster oven to heat it up in the morning before placing my son's lunch into it, hot from the stove. I then put it into his Lava Lunch- lunch box. He told me that his lunch was still steaming at lunch time. I prepared the meal at 5:20am and his school's lunch period is at 11:35am.I'm sorry to say that there is one BIG thing that I really did not like and that is the fact that the silicone rubber that seals the lid became stained on the first use and I just cant get the stain out. One of them even became loose around the corner edge. I would have given 10 stars very easily if only the silicone seal didnt get stained so easily. Other than that the bowl is very durable and cute. There are no dents or scratches and he's been using them everyday since school started in January2020. I should also mention that my child is 8yrs old and he has never had a problem opening the bowl even though it seals very well...Most metal containers are the same. Finding them in the right size is the hard part. These fit the bill.While I originally bought these for my kids lunches, they have become my go-to for fruit storage, especially berries. They are too difficult for my kids to open, so I was disappointed at first, but when I started storing my berries and fruit in them, I realized my fruit was staying mild-free for so much longer than other containers that claim to keep produce fresh! So I will be ordering another set before next summer when we always have lots of fresh berries on hand!They are fine but too hard to open for a child.Item arrived in a completely unglued cardboard box but the product itself was in fine shape. Read the instructions, stuck on the little grip rings to open the box and when my 6yo tries to open it, with me standing there teaching him, the ring comes off in his hand. The product is a 5-star for quality and durability, but it's absolutely unusable by children and is hard to open even for adults. Do not buy unless you intend to use for food storage.It's leak proof alright. Can't even open it. Can't return because cost of returning the item is more expensive than the product. UselessWhile these are easy to clean they really do not keep my kids food hot until lunch, I had hoped this would be an option with no microwaves at schoolGood product. Came quick. Exactly as described. Very happy with the purchase.Read the reviews and decided to go with these containers. These containers are perfect for the little one lunches. No complaints so farBon rapport qualité prix