Usually they do. You may find a double pack with various colors or a single clear one which features a magnifying spine down the center to aid in reading. They are the standard 12 inches in length though, nothing smaller that I've noticed.
What kind of plastics?if your meaning like food storage containers, or plastic dishes, or things like that. Yes they do. They also sale small plastic containers with lids, about show box sizes. I hope I helped with your question.☺
Yes
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