This 6" decal is made with high-quality outdoor vinyl. A clean, flat surface works best. If using on drinkware, hand washing is recommended. This vinyl is removable, but not reusable. Top-quality adhesive vinyl is used which has a paper backing that protects the decal until removed. It has a semi-permanent adhesive that is great for outdoor use for 3-6 years. It's not recommended for use on walls or any surfaces painted, as it will pull the paint off upon removal.