The Beal Opera 8.5mm UNICORE is the lightest single rope on the market. It is also certified as a half and twin rope. Weighing in at only 48g per meter. The rope is made with technology that combines all of Beal's know-how, resulting in low impact forces, UNICORE technology, DRY COVER protection and the UIAA Water Repellent standard for the GOLDEN DRY version. This ultra-supple, ultralight rope will exceed the expectations of the most demanding sport climbers and alpinists. The Beal Opera is certified as a Single, half, and twin rope. Ideal for performance minded sport, trad, alpine and ice climbing.