●Size: Diameter 0.6 inches (15 mm); Material: Glass; Made in Japan. ●Japanese Glass Marbles Value Pack ●Suitable for hobbies, interior decor, kids play, etc. ●Available in a wide variety of sizes 8mm/10mm/11mm/12.5mm/15mm/17mm/20mm/25mm/30mm. ●Available in a variety of clear colors, matte colors, fluorescent colors, and patterns. Find your desired size and pattern.