Each product is supplied with strong adhesive tape at the back. We advise PVA glue should be used in addition to the tape when putting up larger mirrors, or mirrors fixed to dirty or uneven surfaces. If in doubt please refer to our fixing instructions. This sign is a stylish and contemporary accessory for your home, office, school, nursery, hotel Made from premium quality acrylic mirror Unlike glass mirror signs, acrylic mirror is stronger than glass also it is shatterproof, has no sharp edges and lightweight Happy Larry