This set of 7 glass food container jars with bamboo lids came well packaged encased in styrofoam. There are 5 different sizes -one tall enough for spaghetti pasta, one that held a stack of crackers, 2 medium 2 small and one extra small that held half bag of chocolate chips.  These containers are excellent for pantry storage.  They are useful and attractive storage options. The lid creates a good seal when closed all the way. I’m not sure it’s totally air tight, but it is nice and tight.