A&D AscenderRevolutionary ascender that can also be used for rappelling. Classic ascender, that through the introduction of the plate on the body can also be used for rappelling. This solves one of the problems that often arise in the use of ascenders, which have always been designed and functional to climb up, but which become difficult to unlock and which do not allow the double phase. It is enough to insert the rope under the cam into the plate, insert a