Review on ME.FAN Cereal Storage Containers - Set of 4, 4L Airtight Food Storage Containers with Chalkboard Labels - BPA Free, Easy Pouring Lid (Black) by Dawn Kemp

Regular thickness. Comes with a white chalk marker sticker but no writing chalk marker. says. BUT THIS IS NOT HERMETIC AT ALL. We would return them but now we don't have the original bags to repackage the already stale cereal we put in them. airtight as hell, the lids barely snap into place due to the poor design of the top latches. One click on the container to release some air and it simply exhales and returns to its original shape, i.e. they flow like sieves. The filler neck closes tightly on the gasket. To be honest I think they think your air is oily and needs to be squeezed out of containers. There was only one like the hat I'd say ok it's deformed or badly cut out of shape or deformed or something but each of the 4 containers was worse than the previous one. Say it. After we finish the cereal, we throw it in the trash IF it's made of recyclable plastic, otherwise it's trash in landfill forever. Don't waste time placing an order or money making a purchase. Nice to say I usually give good reviews but this product is terrible. RUN!