b. Mechanical Belay. This belay (Figure 9-16) uses mechanical devices to help the belayer control the rope, as in rappelling. A variety of mountaineering devices are used to construct a mechanical belay. Figure 9-16. MECHANICAL BELAY (1) Munter Hitch. One of the most often used belays; the Munter Hitch (Figure 9-17) requires very little equipment. The rope is routed through a locking pear-shaped carabiner, then back on itself. The belayer controls the rate of descent by manipulating the working end back on itself with his brake hand. Figure 9-17. MUNTER HITCH