The Beal Opera 8.5mm UNICORE is the lightest single rope on the market. It is also certified as a half and twin rope and weighs only 48g per meter. The rope is made with technology that combines all of Beal&';s know-how: 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 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. Weight: 48 g/m Impact force: Single 7.4kN, Half 5.5kN, Twin 8.6kN UIAA falls: Single 5, Half 20, Twin 25 UIAA Certified Water Repellent - Golden Dry DC = Dry Cover GD = Golden Dry UC = Unicore process Black Limit middle mark CE and UIAA Certified Single- Half -Twin