Wow, what a good lot this is for the “Crafter” There are so many things you can do with this lot of 7, wide variety of “pull over head” necklaces. I cannot say for sure if what type of vintage plastic they are, but I can tell you that they were in the bottom of a box that was loaded of vintage jewelry. We bought the box at a local auction, and they were auctioning off the items of a very old lady that had died. They are all light pastel colors, some shiny, some dull. The lengths range from 15 inches ( the longest ) , to the shortest, 7 inches. I am going to say they are in good condition, BECAUSE, I cannot say “:Fair” according to the rules. Some could be worn, they are costume faux pearls. They do need some cleaning up. But like I said, I know very little about vintage plastic, so the call is yours, please do your research before bidding, if you are looking for a particular vintage plastic. I am selling these as a “Craft/Project” items, but I can think of many other uses for them, they could dress up almost anything, especially the blueish gray and white pearl necklace. If you have any questions please let me know !