Glow in the dark: approximately 200 non-toxic shiny resin pebbles per bag. These pebbles absorb enough sunlight or artificial light during the day to glow for up to 3-6 hours at night or in other dark environments. ecological: No need for electricity. These luminous stones are made of quality resin, durable, tasteless and non-radioactive. Workmanship and fine polishing, so no sharp edges. DIY decoration: On holidays or special days, for example, someone's birthday. Nothing is better than giving a gift in person. So you can decorate the gift with these sparkling luminous stones to surprise your friend or loved one. 200 Blue Coins: After purchase, you will receive 200 pieces of sparkling blue stones with which you can decorate places or decorate special holidays, such as the commemoration of a deceased person or Halloween to add a festive atmosphere. The set includes: 200 luminous stones. Blue in color. Dimensions: irregular shape. Note: Before using the glitter stones, please allow them to spend 12 hours in either sunlight or lamp light. Do not let children throw these glow stones at other people or throw them from where they are. High to avoid accidents.