Love the various sizes in this listing. Glass is clear, and oven safe ( huge plus). Locking lids are a wee bit tough to get all snapped, but that could be because they’re new. The rubber seal is removable, but thicker than most I’ve seen in stores, so you can 1) clean it with ease and 2) get a really nice vacuum when snapped shut. My only regret is not ordering two sets when they were on sale! )