This is a Petzl Reverso belay device (also known as an ATC) and a GM Climbing Prusik loop. I purchased these a few years ago for mountaineering, but I never used them and they've been in storage. I only tested them once indoors with my weight. The Reverso doesn't have a weight rating indicated on it. Please note that there may be some minor dirt as they were stored in a bag with other gear.