A mechanical Rope Control device for the experienced climbers. Direct operation and a very free passage of the climbing rope. The back pressure is controlled with the upper handle. Suitable for ropes with Ø 11-13 mm.The Dynema connection can also be placed on the Spiderjack 1 instead of the Velcro strap. The Spiderjack II has a weight of 272 grams and complies with EN 358.