These are glass markers from Mastrad, France. They are from about twenty years ago, but were stored at home after being opened and hardly used. There is some rubber on them, so there is some aging, but I think there will be no problem with use. They have excellent design and will brighten up your plain glasses. They are perfect glass markers for parties and drinking gatherings. It seems they are no longer sold, so I hope you will enjoy them as vintage items. *The wine glasses are for photography purposes. Please note that they are not included in the product. We would appreciate it if you could purchase them with the above in mind.