Here we have a set of three Bennington Marbles, they measure between .62" - .63" in diameter. These were being handmade in the 1800's. They are all nice examples in a variety of colors, please look at the pictures to see all the details. There is a satisfaction guaranteed return policy on all my items, if you are not satisfied for any reason, please return the item for a full refund. Check out our store for other authentic fossils and artifacts. Thanks for looking!