Petzl PARALLEL 10.5mm Lightweight and Flexible Low Stretch Rope Access Kernmantle Rope 50m-500mThe PARALLEL 10. 5 mm low stretch kernmantle rope is designed for rope access. The small diameter ensures very good performance in terms of flexibility and weight. It has low stretch when put under tension, increasing efficiency at the start of a rope ascent. The EverFlex technology guarantees great flexibility and consistent performance over time. Rope available in six colours and four lengths. Low stretch when loaded, increasing efficiency at the