Description:9PCSHonana 15x 6cm Fluorescent Glow Dinosaur Wall Sticker This Photoluminescent Pigment is environmentally friendly. Great decoration for bedrooms, nursery rooms, kids room, etc. Specifications: Brand: Honana Item: Fluorescent Stickers Style: Dinosaur Material: Plastic Color: Light Green Size: Received: 21cm x 29cm Finished: 15.5cm x 6cm x 9PSCWeight: 15g How it works? It adsorbs light & glows in the dark. So you must put it in the sun to absorb much light. Or you can also turn on the lights tolet it absorb enough lamplight. When you turn off the light & go to bed, it will glow in the dark. Package Included:1 x Honana Fluorescent Stickers