Improve light absorption and luminescencePlace these exquisite marbles in the sun or expose them to ultraviolet light to absorb energy. The more these glass marbles absorb, the stronger the light they emit. Experience their luminous charm at night.Highquality technologyMade of highquality glass, luminous marbles are . Their smooth surfaces provide seamless rolling of marble paths.Endless entertainment for all agesCharming and versatile, our luminous marbles are ideal for ball games, such as marbles and traditional games, whether day or night. Flipper improves handeye coordination and fine motor skills, and promotes quality time between parents and children.MultifunctionalBesides games, luminous marbles can also be used as vases, gift bags or aquarium fillers, as well as elegant table decorations. Be, roll, throw or integrate marbles into DIY projects to decorate your living room.Affordable set20 luminous glass balls 0.63mm in diameter, slightly different due to manual measurement with 10 different colors are perfect birthday gifts for children.Color As shownMaterial GlassPackage contents20 Glowing balls 10 colors, 2 of eachOnly the above package contents, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is13 cm.