Material: High quality resin light pebbles, non-toxic and odorless, free of radioactive substances. Fluorescent light effect. The product is harmless to humans, fish, birds and plants. The stones have been finely machined and polished so that there are no sharp edges. Reusable: Remove the packaging and place the pebbles in the sun or light. Note that each pebble absorbs light. They do not require power or electricity after being exposed to the sun for a few hours. When first used, it can absorb and store energy after emerging in the sun or light. They glow when it gets dark. It can be used repeatedly. Wide range of applications: These glowing stones are ideal for aquariums, pathways, cycle paths, flower beds, flower pots, aquariums, the gardens. You just have to place the pebbles on the place you want to decorate. Use these stones to create your own decoration for vase, outdoor, villa garden, flower pot, swimming pool, pond, bar, home, lawn, birdbath, patio, children's room, as a DIY gift, as a night light and as a Halloween Christmas decoration and more. Eco-friendly and energy-saving: no electricity required, economical and energy-saving, easy to clean and almost maintenance-free. These pebbles absorb and store energy from the sun or other light sources. These glowing stones can automatically glow in the dark after being exposed to the sun during the day. Glowing Stones50 colorful glowing stones per bag. For better lighting effect, please place these pebbles next to each other. Note: Please place the pebbles where children can easily reach them to prevent choking.