I was at work today and one of my students was removing the seat from his car, for repair, and found two of these. He only has owned the car for a short time and they weren't his so the previous owner must have left them. What is it? What is it for? Considering it has a part number it must be considered to be a tool or something. It is a nice lint free rag, which did a nice job cleaning my computer screen. I assume it is used for cleaning something in the aircraft, but what?