Mammut Smart Belay Device:
The new Mammut Smart Belay Device offers unparalleled safety and ease of use for cragging, all in a lightweight and inexpensive package. The unique design combines very easy rope management making feeding a huge armload of slack for that hard clip easy, with a super-dependable locking feature that makes catching a hard fall very easy, even with ultra-skinny ropes. A side benefit is that this locking action makes marathon belay sessions easy while your partner dogs his project for the umpteenth time. Not for use as an autoblocking belay device.