2 Bag BOSTON WORLD LIMITED Glow In Dark Crystal Magic Gel Jelly Ball Soil 5g each - Ball Size are 2mm-2.5mm Crystal Magic Gel Jelly Ball Korean Design Crystal Magic Gel Jelly Ball The soil ball will glow in the dark after under light for a short time. Boston World New Packaging Design Clear Package with White strip on top. Soak in water to grow over 10 time in size.