everyone needs this
When we go rock climbing, my friend brings her grigri and that is the only belay device that we use. She won't even let us belay her with anything else. It is awesome to belay with, not to mention it will save your life if you fall! All my friends weigh more than I do, and they feel really safe with me using this belaying device-it locks when they start to fall. It is great, save your life and your friends...get one!