Long ago, I was really into single-lens reflex cameras (film) and bought various related items. These are two of them. I bought them to attach a macro lens and take extreme close-up shots, but I never used them and they've been stored in the closet. Both function without any problems and are still perfectly usable, moving smoothly. They both come with boxes, but the boxes have stains. I'm listing them as used items, but they are practically new. Please refrain from purchasing if you are overly concerned about condition.