Description: This Photoluminescent Pigment is environmentally friendly. great decoration for bedrooms, nursery rooms, kid's room, etc. How it works? It adsorbs light and glows in the dark. So you must put it in the sun to absorb much light. Or you can also turn on the lights to let it absorb enough lamplight. When you turn off the light and go to bed, it will glow in the dark. Features & details: Shape: Flaky pentagram Material: Plastic Color: Light Green Size: 3cm Weight: 100G Package Included: 100Pcs x Stars Stickers