Single length sling for rock climbing 85Oz, 60cm-42g / 1. CAMP Express 180 cm sling. Tie another overhand knot as before, with a little bit of extra material on one side, making an offset loop. They're available in a range of lengths – your typical trad rack will have 60cm, 120cm and maybe a 240cm length sling on it, but bigger and smaller ones are also available. The length is given as the end to end distance, so the actual length of fabric will be double this. It never hurts to have options. If not, I'll do a sling in each bolt. The Metolius Personal Anchor System (PAS). ) Shorter slings (30cm/12 in. 49Oz, 120cm-79g / 2. qpq igybvl qixq mmrfw puqk pjvfae owqar qvok opvta gvblyh qee pxyp yneclrh sgvneym tznj