Belay device

A belay device is a safety tool used in rock climbing and rappelling to control a climber's descent or to secure them while ascending. It works by providing friction on the climbing rope when the belayer pulls or releases it, allowing precise control over the climber's movement. When used correctly, it can prevent falls from causing injury. Different types include guided-brake and non-guided devices, each designed for specific climbing scenarios. Essentially, a belay device acts as an intermediary that enhances safety by managing the rope's tension and sliding, helping to catch or lower the climber safely.