Safe and durable: no electricity required. Made from high quality resin, the garden pebbles are durable, non-toxic, odorless, non-radioactive and 100% environmentally friendly. Principle of luminescence: It absorbs and stores energy after passing through the visible rays such as sunlight, light, etc. The product absorbs and emits light repeatedly and has a lifespan of up to 15 years. Make your garden shine: you can use these pebbles to color sidewalks, flowerbed edges or flower pots. They will make your garden or yard absolutely unique and cool. Multifunctional Fluorescent Stone: The stones are very suitable for aquarium gravel, pond decoration, garden decoration, garden walkway. ‘Halloween, driveway, aquarium gravel, glow stone, etc. Luminous decoration: These decorative garden stones glow in the dark under the sun and are very suitable for decorating your home. landscape, very good for craft lovers and are environmentally friendly light decoration. Size: about 13-17mm Material: resin