This set of 2 boulders is a must-have for any marble enthusiast! The white boulders are beautifully complemented by the brown and green marbles, creating a stunning visual effect. Measuring at 1 inch, these machine-made marbles are perfect for players of all ages, with a recommended age range of 5+. The gender-neutral design makes it a great gift for both boys and girls. The artist behind these marbles is unknown, but their quality speaks for itself. Add these marbles to your collection today and enjoy the timeless fun they bring.