This is a polarizing film used for repairing vinegar syndrome in Game Boy Color, Game Boy Advance, etc. It measures approximately 12.3cm in length and 7cm in width, and one sheet can repair two devices. The second photo is for reference. It comes with adhesive for easy application, but I failed on the first attempt when I used it on a Game Boy Color myself, so I'm selling it as a set of two. One side has a protective sheet, and the other side is the adhesive side, so please remove both when using. The protective sheet has marks, lines, and alphabets printed on it with color ink. (The location of the printing may vary from the photo.) There is a slight warp, so please purchase only if you don't mind. It will be reinforced with cardboard and shipped via regular mail.