These are grape-patterned coasters that I purchased about 25 years ago from a Bohemian glass shop in Singapore. I bought two sets and these are the remaining ones after giving some away as souvenirs. They came out of the cupboard during the New Year's Eve cleaning. I think they are unused, but there might be some that were used once. For cups with a base diameter of 7 cm or less. Approximately 9 cm in diameter from the top. There are no smokers or pets. I bought them as coasters, but I think they can also be used as small plates for fruit, etc.