DescriptionBeautiful, colorful and wonderful glow in the dark fluorescent particle, environmental protection, corrosion resistant and harmless, non-radioactive. Light up your fish tank at night, also can make luminous in wishing bottles. It is a great gift for your love one, family and friends.Features- Color: Green - Material: Luminous powder - Size: 7.5 x 6 x 0.5 cm - Weight: 10g - Non-toxic, harmless, non-radioactive, strong environmental adsorption capacity. - Can be used for fish aquarium decoration, romantic and beautiful. - Glow in the dark, make luminous wishing bottles or fish tank. - for swimming pools, aquarium, fish tank, walkways, driveways,garden or backyard decoration. - It is a great gift for your love one, family and friends.