With portable marble jar for easy , take it anywhere and have anytime.There are subtle swirls in the coloring for each color. Great for Chinese Checkers, marble runs or any other marble gameHave endless with our marbles everywhereWe believe you or your little ones would definitely love our marbles.Age: 3 years old and aboveDiameter: 16 mm (5/8 inch)Give pleasure for children when playing marblesDecorative your favorite aquarium; aquarium decorationDIY the pattern you like in your spare timeAlso can to put these marbles in your garden the way to make a beautiful landscape and a good moodMaterial:glass colour:Blue + transparentPackage Contents:20 * Glass Marbles(blue*10,transparent*10)Only the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.