All HOKIPO Magic Sticker Series Adhesive are covered under 12 months replacement warranty. If the Sticker falls off within 1 year of your order date, we will give you a free sticker as replacement. You will have to bear only nominal logistics cost. That's how sure we are about our product. Gentle Reminder - Make sure you are using the product on a clean and smooth surface (tiles, marble, granite, glass, sunmica, veneer, bakelite) and not on rough surface like painted walls or uneven tiles