Artificial Resin Luminous Stone Fish Tank Aquarium Landscaping Luminous Stone Pebbles Fluorescent Stone Features: Environmental protection material: Fluorite is made of nonradioactive resin, which is to human body and living environment. Unique Stones for Different Decorative Styles: These stones can be used to make a path, aquarium or garden beautiful and romantic. Glow-in-the-dark effect: of these gemstones lasts about 5 to 8 hours after exposure to sunlight or light. A variety of colors for you to choose: you can give it as a gift to your family, friends and colleagues. Beautiful and durable, can be used for a long time. SMALL AND PORTABLE: You can bring these glow in the dark stones lightness to your campsite for a great night out. Product Description: Description： Material: Acrylic resin Dimensions are as shown. Color: Multicolor Package includes： 10 x Glowing stones Notice : Due to the difference between different monitors or color reflecton in the monitor lighting,background etc, the picture may not reflect the actual color of the item. Please allow 1-5mm error due to manual measurement. size: 12 X 7 X 2cm(4.72 X 2.76 X 0.79inch) Material: Acrylic resin Package Include: 10x Stone Beautiful variety polished rocks. Vintage colors and vivid colors for your choice. All these stones were formed naturally If you use the large black rocks to decorate potted plants, our black pebbles with perfectly polished accent will make your plants really stand out