The sheets of acetate I ordered, do the job I ordered them for. They are flexible but with enough support to use in model making. I used them to create a mockett for an art project. I would buy them again.
I love using acetate & think of it as a 'must have' alongside my StazOn inks. It is also useful for making things look as though they're floating in front of cards - worth giving it a try if you're not sure.