New and revolutionary descending system designed by FIXE, with countless advantages, including: Made in stainless and duralluminium. The pulley system avoids friction between the rope and the carabiner, extending the life of both greatly. Due to there being no friction between the rope and the carabiner, no heat is given off: the main cause of rope wear. Its position is ideal for climbs repeated often in a short period of time, by means of the "top rope" system. Once the climber has reached the "top rope", his descent is much smoother and without brusque movements, allowing for better control. It includes a threaded lock to avoid involuntary unhooking from the rope. Can be mounted according to customer/user needs (see attached chart). Makes recovery of the rope second much easier (given that the rope passes through the pulley , the recovery effort is half any conventional descent). Designed for indoor rock climbing walls.