Mammut Bionic Alpine Belay Device, Side and Top View. Based on the Tube Principle, it Can Be Used with Two Ropes in the Same Time Editorial Stock Image - Image of background,
Mammut Smart 2.0 - Outdoor 2017 - YouTube
Mammut Smart 2.0 and Smarter Belay Device - YouTube
Smart 2.0 - black, belay device by Mammut – 9c Professional