Features100% Brand new!Glow in the dark pigment gravel sand grains powder fluorescent luminous particles tiny stones.Safe material. Made from non-toxic and non-radioactive material, safe for the environment and you.Bright glow results. We pick out popular vibrant colors. Mix and match to make any color you can imagine! Each gravel is about 1-2 mm, solid, insoluble in water.Long life time. Repeatedly absorbing energy and emitting light, the luminous sand has a long service life over 15 years. It is a good choice to do a creative and meaningful gift.Various application in art decoration. DIY starry bottles, luminous epoxy resin jewelry, glowing in dark indicator like fluorescent emergency signs, doorplate, toy letter, Halloween mask, etc. It can also be applied to decorate bar, vase, fish tank, garden flower pots, to mark paths and walk way.SpecificationsColor: Blue, purple, green, yellow, orange-yellow, blue-green, yellow-green, hot pink, sky blue Weight: About 10g/0.35oz per bag Each Gravel Size: About 1mm~2mm Bag Size: About 80x60mm/3.15x2.36" Attention1. Due to the effect of light and monitor's brightness, there may be slight differences between the color tone of the photo and the actual item!2. The color of the particles during the day doesnt represent their glowing color. Please refer to the actual glowing color we displayed.3. After receiving the goods, please "charge" the luminous sand under the light or sunlight. The sand glows when it absorbs light. You need to "charge" it longer with a bright lamp or sunlight if you want to see long & bright glow in the dark.4. Do not grind the glow particles, it will destroy the crystal structure and therefore decrease luminosity.Package Included10g Glow In The Dark Sand