I keep my premixed acrylic paints in these jars and they're fantastic. The lids are easy to remove and replace. They seal will and I feel like my paint is going to last much longer than in plastic. They're very lightweight and easy to hold, large enough for quite a bit of paint, etc. The opening at the top is about the size of a penny.Also, these seemed very delicate to me at first due to the thin glass, but I recently dropped an empty one without the lid onto my wood floor from standing position and it didn't break. I thought for sure I would be cleaning up tiny glass shards.
Rating: [5 of 5 Stars!]