The product is a set of 40 vintage 5/8" marbles in clear green with a Cat's Eye style, made in the United States before 1970. These machine-made marbles are a collectible piece of history, featuring a unique design from that era. While there are some damaged marbles included in the set, they still hold value for collectors and enthusiasts of vintage marbles. The Cats Eye vane style adds a distinctive touch to this set of retro marbles.