This item has been stored at home and is unused since purchase. There are some sticker marks on the box. I don't know much about the product, but my son used it for his job (underwater welding) and lost it, so I bought a replacement. It was found later, so this one is unused. I opened the box for the photos. If you would like additional images, please let me know in the comments. I've set the price based on a general idea, but I would appreciate it if anyone with more knowledge could let me know. Thank you very much.