Light and clever - Mammut Smart Belay Device

This device is elegantly simple, easy to use, and well designed, with no moving parts, and without all the complication of a GriGri but still offering the security of auto operation. It's my new favorite for single rope use. I plan to buy one of the "Alpine" versions for twin ropes and rappelling.

This review was written in the old system and had content requirements that are different than reviews written today.