Material: Environment friendly vinyl This Decals Are Great For Decorating Interior And Exterior Surfaces And Can Be Applied To Any Sooth Or Semi-Smooth Surfaces-Mirrors, Glass, Doors, Furniture, Cars Metal, Plastic And Walls. Self-adhesive die-cut vinyl sticker ,its no background will make your wall looks like painted. About Size : XS 10cm wide S 15cm wide M 20cm wide L 25cm wide XL 30cm wide XXL 35cm wide About Product: How to use Step 1 : Clean the area thorougly with rubbing alcohol or soap and water.Do not use Windex or similar products because it will leave a residue behind that will prevent the sticker from adhering well. Step 2 :Prepare the sticker for application by firmly rubbing a squeegee or credit card across the clear transfer tape. This removes any air bubbles that may have formed and makes the sticker cling to the transfer tape. Step 3 :Peel the white paper backing off the sticker.If the sticker clings to the backing,slowly replace the paper backing and repeat Step 2. Step 4 :Slowly lower the sticker onto the surface and rub it in place firmly with a squeegee or credit card.Start in the middle and work your way out. Step 5 :Slowly peel the clear transfer tape off at an angle.Be careful not to pull the sticker off the surface.If sticker pulls away from the surface repeat Step 4.