- These can glow for 8 hours or more when fully charged.
- Each Bag Contains 20 Large High Polished Stones. Size – approximately 4.5×3.8x.05 cm
- These charge the fastest under direct sunlight, black, UV or LED light, but will still charge under regular light bulbs
- Water, acid and alkali resistant – Salt Water tanks are fine
- Completely safe and non-toxic. Available in Aqua, Sky Blue,Mixed and Yellow/Green