With a weight of just 48 grams per meter, the Beal Opera 8.5mm Dry Cover Climbing Rope is ideal when on-sighting demanding sport routes. Thanks to Beal's Unicore technology, the Opera is able to maintain a relatively low impact force rating for when you do take a fall. The rope's supple feel, light weight, and Dry Cover treatment make it versatile enough for mountaineering in a pinch.