This has never been used and selling it as I have a damaged LCD as well and just changing out the digitiser won't fix my phone's problem. There black marker in the photo is on the sticker and not on the screen. It'll come off when you pull the sticker off. 

I must say that you need to have the skill / technique and equipment to separate the digitiser from the LCD which is glued on to it. There are several videos on YouTube showing you how to do it. It is normal to just change out the whole screen assembly (Digitiser + LCD) if you can find it online.