The Beal Opera 8.5 mm UNICORE is the lightest single rope on the market weighing only 48 g per meter. This rope is made with technology that combines all of Beal's know-how: UNICORE, a process that bonds the rope sheath and core to provide greater safety and durability. This ultra-supple, ultralight rope will exceed the expectations of the most demanding sport climbers and alpinists with its low impact force. The Beal Opera is certified as a Single, Half, and Twin rope. Ideal for performance minded sport, trad, alpine and ice climbing.