Thank you for viewing. This is a Canon Extender EF 2x III. I purchased this from a used camera store last year as a used AB-grade item, but I am selling it because I have used it less frequently. I mainly used it with a 70-200mm lens to photograph trains and airplanes. Appearance: There are no noticeable scratches. It is clean. Optics: No mold or fogging is visible. There is a small amount of dust, but it does not affect the image quality. Operation: Works perfectly. The accessories are all that are shown in the photos. *Stored in a dehumidified storage cabinet. Sample photos were taken with an EF 70-200mm F2.8L IS II USM + EF 2x III.