10G Beautiful Fluorescent Sand Decoration Sand Home Decoration Luminous Sand in the Dark Sand Feature: Bag Size: 8*4.8*0.3cm Material: Sand Size: Average size (1-2mm) Quantity: 10g/bag approx 10g(+-1g) sand in a bag. Beautiful, Colorful and Wonderful Also can make luminous wishing bottles. Light up your fish tank at night. It is a great gift for your, family and. Up to approx. 3-6 hours being exposed 30-60 minutes to light. Swimming pools, aquarium, fish tank, walkways, driveways,garden or backyard decorations. Put 10g into a glass bottle, a wish bottle is done. can be used for fish Aquarium decoration, romantic and beautiful. can be used on painting,such as butterfly's wing/moon star...and so on. can be used for nail art. Note: Due to the difference between different monitors,the picture may reflect the actual color of the item. understand, Thank you. Package Content: 1Bag/10G in The Dark Luminous Sand Aquarium Fluorescent Fish Tank