●Size: Diameter 1.2 inches (30 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.