Name: Luminous Stone Material: resin Color: color,white,blue,green,cyan,purple,yellow,orange red Product size: 0.5*0.4in per piece Features: 1. Environmentally friendly materials: Fluorite is made of non-radioactive resin, which is good for the human body and living environment 2. Luminous effects: These gemstones last about 5 to 8 hours after exposure to sunlight or light. Decoration for garden patio lawn, edge a flower bed, lighting a pathway or driveway, gardens, crafts, aquariums, school, park, etc 3. Sufficient quantity: a pack of 500 pieces, the number is sufficient, a pack can be used for many places inside and outside the home that need to be decorated 4. Unique stones for different decorative styles: These stones can be used to create beautiful and romantic trails, aquariums or gardens. What a surprise gift! Please thinking it why yours glow rocks doesn't work in your garden, Please radiate them with light again if they are not bright enough, Only time will tell how long they last but my initial assessment is extremely positive. Specific circumstances can have different effects, so its very important to use them properly 5. Choose from a variety of colors: You can give it as a gift to family, friends and colleagues. Beautiful and durable, can be used for a long time 6. Small and portable: You can bring these glows that glow in the dark stones to your campsite for a great night out Note: 1. Manual measurement, the size will have an error of 0.2-0.8in, please refer to the actual size​​. 2. Due to the difference in light and screen, the color of the product may be slightly different from the picture. Fluorite is made of non-radioactive resin, which is good for the human body and living environment These gemstones last about 5 to 8 hours after exposure to sunlight or light. Decoration for garden patio lawn, edge a flower bed, lighting a pathway or driveway, gardens, crafts, aquariums, school, park, etc A pack of 500 pieces, the number is sufficient, a pack can be used for many places inside and outside the home that need to be decorated These stones can be used to create beautiful and romantic trails, aquariums or gardens. What a surprise gift! Please thinking it why yours glow rocks doesn't work in your garden, Please radiate them with light again if they are not bright enough, Only time will tell how long they last but my initial assessment is extremely positive. Specific circumstances can have different effects, so its very important to use them properly Choose from a variety of colors: You can give it as a gift to family, friends and colleagues. Beautiful and durable, can be used for a long time