The double pulley is particularly suitable for ziplines up to 50 km/h. Improved ergonomics of the handle and ease of use, thanks to the new lever that can be opened with one hand. A special design guarantees correct positioning on the rope in any situation. The roller is suitable for steel ropes up to 13 mm in diameter and complies with the requirements of the EN17109 standard. It can be used as a mobile connection device of category A.