I am selling only the left hand side, as I have lost the right hand side. The size is M. I think I used it for about 2 months. I lost the other one and left it unused for about a year after that. I could operate my smartphone screen with it. Washing it seems to affect the smartphone screen operation, so I am selling it as is. Please refrain from purchasing if you are sensitive to this. No claims and no returns, please.