High quality material: Made of high quality resin, durable, non-toxic, tasteless and non-radioactive, no harmful chemicals to humans, fish, birds and plants. But please attention: Easy to crack low temperature in winter. Environmentally friendly and energy-saving: No power consumption required, the glowstone absorbs all visible light sources such as sunlight or light and then stores energy. They glow for up to 2-8 hours after normal daylight. Easy to use: Allow the pebbles to absorb sunlight or artificial light for at least 4 hours and follow the road. They shine brilliantly at night and turn your garden into a beautiful and dreamy landscape Wide range of applications: Easy to use, you just need to place the pebbles on the place you want to decorate, such as walkways, gardens, fish tanks, swimming pools, bars, etc. These places are your best choices for glowing stones. Reusable: The pebbles can be reused, just put them in the sun or light to ensure each pebble can absorb light, which