Ceiling light box covers (West Littleton)

2 sheets of textured heavy plastic (?) sheets. They served as covers in a kitchen ceiling light box (retro oak type box). Each measures 46" * 23.5" and about 1 mil thick. No cracks or missing pieces. Can be cut to fit whatever you need. Hoping someone can use them as spares/replacements or for some other purpose! Very hard to get a good pic. Porch pickup available.