The product is a set of 36 contemporary micro marbles handmade by artist Bruce Troeh. These marbles come in sizes ranging from 12 to 22 and feature a swirl style design. Made in the United States during the 2000s, these marbles are suitable for ages 8 and up. Each marble is carefully crafted by hand, making them a unique and creative addition to any toy or marble collection. This set of marbles is sure to provide hours of entertainment and artistic enjoyment for individuals of all ages.