The product is a fine early JABO marble, featuring a unique swirl style with ox blood and loaded green aventurine. Made by the renowned brand JABO in the time period of 1970-Now, this machine-made marble is a beautiful collectible piece measuring approximately .69 inches in size. Perfect for enthusiasts of marbles and collectors of unique and rare pieces, this marble showcases the artistic craftsmanship and attention to detail that JABO is known for.