I bought this for my partner, but we never used it in the mountains, so I'm selling it. It's unused. I've lost the tag and instruction manual. I'm also offering it to acquaintances, so I'll remove the listing if it's sold that way. The Petzl STOP is an aluminum descender with a safety device, suitable for caving and tree climbing. - Brand: Petzl - Model Name: STOP - Color: Blue - Material: Aluminum - Features: Safety device Thank you for looking.