Edelweis BIRDIE KINETIC EDITION is a compact, simple belay device with an assisted brake for belaying a first ascender or over a "top rope" (on a fish). The entire construction of the BEAL Birdie is metal. Internal connecting parts + dynamic cam and friction hammer are stainless steel for increased durability. The rope passes through the axis of the breaker - there is no twisting of the rope when rubbing over the edge. It is compatible with simple dynamic ropes with a diameter of 8,5mm (BEAL Opera) to 10,5mm (BEAL TopGun). The ideal rope diameter for operating the belay is 9-10mm. The belay is secured by means of a connecting carabiner.