GEiNNOVA Glow in Dark Sand Photoluminescent Gravel Fluorescent Grain Set of 8 for Party/Wall/Bottle/Glass Decor Graffiti Luminous Art Pigment

Features

• High-intensive luminous,exposed 1-30 minutes in any light can glow in the dark up to 1-5 hours
• Non-toxic, harmless, non-radioactive, safe to skin,strong environmental adsorption capacity
• Non-flammable, non-volatile. No specific storage requirements.
• Fine even grain 0.5-1 mm, washable, easy to clean
• Long life time,repeatedly absorbing energy and emitting light for at least 3 years