Don't be fooled by the small diameter of the Sterling Helix 9.5 x 70 m Climbing Rope???it's a workhorse. Engineered to offer the perfect balance between diameter and weight, this rope is perfect for high-end sport, traditional, and mixed climbing.. . ??. . . Ideal for high-end sport, trad, and mixed climbing. New sheath and bantamweight core construction make this rope a skinny superhero. Engineered for an ideal balance of diameter to weight. 846604028848 20169000012 EMSEH190070