Glow in the Dark Powder Blue Pigment 2 Ounces Glow in the Dark Pigment Powder Standard 45um size crystals, which is 4th generation pigment, and that means a long glow time Remember that each of these crystals is like a battery that CHARGES and DISCHARGES at the same time. They constantly NEED charging to keep glowing. UV is the main source of charge 2 ounces of Blue in a clear poly bag. Off white day color, glows Blue in the dark It is not hard to see the attraction of glow in the dark products. They can be used on just about anything you can think of from slime, candle making, nails polish, hair chalks, household items, office safety and more. GloMania USA supplies a number of different glow products including, but not limited to paints, powders, plastics, stones, and sheets. Each one has a specific role Mix with solvent based mediums for BEST finish. Please note that you CANNOT mix the colors to create another color. Unlike normal powders which leach and mix, these are CRYSTALS and do not mix