Features: * Outdoor Indoor Decoration: Perfect for decorating plant plots, garden walkways and paths, aquarium, succulents, yard, glass vases, landscaping, swimming pool, as well as borders and flower beds. Recommend multiple packs with different color for large area.* No electricity required: After exposure to sunlight or placing the stones under strong light (lamp light) for an hour, the glow stones can glow for hours in the dark. More hours of absorbing sunlight and stronger light, brighter stones.* Ultra-long life: Glow in the dark pebbles can absorb sunlight and lamp light repeatedly with a super-long life of up to 15 years.* Eco-friendly: 50 pieces of glow stones are made made of polystyrene (PS), eco-friendly, non-toxic, non-radioactive, high gloss without sharp corners, safe for garden and aquarium decoration. Specification: Size: 2-3cm/0.78-1.18 inch Material: photoluminescent pigment + resin Application: path lighting, driveway, walkway, flower pot, potted plants or aquariums. It is the best DIY decoration for vases, fish tanks, aquarium, crafts, swimming pool. Perfect for garden, patio, lawn, yard. How to make them shine?1. Don't leave pebbles under the light with the parcel.2. Do not stack pebbles, make sure each pebble is fully lit.3. When the pebbles glow, make sure the surroundings are dark enough.4. You can enjoy the glowing pebbles, the longer the absorption time, the longer the glowing time. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Content: 50pcs Glowing Stones Note:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.