Unicender Arborist Tree Care DdRT Tool SRT Device Rock Exotica
It magically advances with near frictionless motion, towed by the (upper) attached line. Squeeze soft—go slow. Release the device and it locks on line. Very simple, very smooth. The Unicender by Rock Exotica is an all-in-one ascender/descender that works in both single and doubled rope techniques (SRT and DdRT).