They are made of thin plastic. I've used them for about 2 weeks now for all of my lunch and dinners. I don't have any complaints other than one of the lids got a crack in it after the first week. I'll probably get a good 6 months out of them.
By CC7 on August 7, 2015
Honestly they weren't a good product I use them for to go plates. They don't lock and the lid comes off like super easy like it doesn't click when ur trying to close it
By Jessica R. on December 13, 2015