Glow in The Dark Educational Wall Stickers, The Eco-Friendly and Brightest Wall Stickers for Ceiling, Bath time, Bedroom, Party, Decor Material: PVC Made in Japan Package Size: 4.13 x 3.62in - Glows 70× brighter than standard stickers - Long-lasting light with lifetime glow guarantee - Fully charges in 10 mins (sunlight) / 30 mins (room light) - Water-resistant and highly durable - Stick and peel off anytime, anywhere - Works on paper, cloth, wood, bumpy or flat surfaces - May damage wallpaper/paint—test before full use - Peel slowly to avoid residue or surface damage - Keep surface clean for best brightness - Place where exposed to bright light - Not for kids under 3; choking hazard - Do not put in mouth WARNING: Reproductive harm – www.P65Warnings.ca.gov.