This set of Earth marbles comes in assorted colors and is a whole collection on its own. Whether you want to educate yourself or your children, keep the kids entertained for hours or add an assortment of small and colorful worlds to your marble collection, these are for you.  approx. 1” (22mm) Earth marbles warning - small celestial bodies, choking hazard the geographic art is expertly kiln fired at over 1000 degrees, creating an all-glass masterpiece that will last a lifetime!    A portion of the proceeds goes to support environmental organizations and inspire world peace.   Handmade in the USA