I Solemnly Swear That I Am up to No Good Harry Potter for Apple Macbook Laptop Vinyl Sticker Decal Black Available to fit 11", 12", 13", 15" MacBooks, laptops. Application instructions included. Macbook 13" black will be sent unless otherwise specified Decals are made with High Quality 7-year Outdoor Grade Vinyl; Can be easily removed and leaves no sticky residue, will not damage surfaces Quality only guaranteed if purchased through Wenxuan Store, other offers are imitations.