Ascenders / Descenders
Tree climbing ascenders and descenders
Tree climbing ascenders and descenders come in all types of form from rope to mechanical forms. The mechanical forms include the Petzl Zigzag and the ART Spiderjack both of which are engineered to improve the speed, control and energy use of the tree climber. Marlow Ropes, Beal and Teufelberger produce excellent friction cord for prussik loops and other climbing knots for the simpler way of ascending.