Environmentally friendlyNo marks will be leftWater resistant and mildew proofFor a more effective moonlight glow,have it under the sunlight or an artificial lighting for at least 20 minutes.It will glow in the dark for up to 5 hours depending on the light absorption time before gradually losing its ability to glow.This unique moon will add a touch of style and individuality to your home decor.It`s adhesive and can be stuck easily on walls, cielings, glass, wood, plastic or anywhere of your choosing!: & High qualityMaterial: PVC    Color: As pictures showDimension: Dia: 11cm/4.33inch(approx.)Package includes:1x Wall StickerNote:1. Because the different measurement methods or fabric elasticity and other issues, so there may be 0.1-0.5 inch error.2. Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100% the same.