Beal Opera 8.5 mm is a single rope certified also as half and twin. Ultra-light, fluid and versatile, it is recommended for expert climbers when used as a single. This product contains the most important Beal branded technologies. It is, in fact, equipped with Unicore technology that welds the soul and the sock together. This ensures that the two components remain together in the event of a tear. The Dry Cover is a waterproofing treatment that makes the rope resistant to moisture, abrasion and dust. It is applied to the outer jersey and performs well on large routes and approaches. In addition, the Beal Opera benefits from Thermo Fluid, an infrared treatment that stabilizes the fibers of the sock making the rope more compact and manageable. The Beal opera is also available in the Golden Dry version. Instructions. Beal Opera 8.5 mm Unicore Dry Cover climbing rope