Yadda-Yadda Design Co. Narwhal Versus Unicorn - Vinyl Laptop or Macbook Decal Manufactured and sold exclusively by Yadda-Yadda Design Co. This is a Yadda-Yadda Design Co. brand decal. Any other sellers on this listing are selling counterfeit unlicensed knockoffs of our products. Instructions, link to video and practice sticker included with every order. Decal will fit nicely on 13", 15" or 17" Macbooks as well as similarly sized laptops. Made with low tack adhesive vinyl that can be removed without leaving residue. Manufactured by Yadda-Yadda Design Co. If you purchase this Yadda-Yadda brand decal from a seller other than Yadda-Yadda Design Co. you are purchasing a counterfeit item.