Rope grabs or hand brakes or assenders allow you to take rope in or up while protecting you against a sudden accidental decent. All of these devices include a one way "grab" that allows you to manually open the latch and adjust your ropes length. They are designed that if you fall or even pass out the device thinks for you and closes stopping the rope from moving through the device.
Rope grabs or hand brakes or assenders allow you to take rope in or up while protecting you against a sudden accidental decent. All of these devices include a one way "grab" that allows you to manually open the latch and adjust your ropes length. They are designed that if you fall or even pass out the device thinks for you and closes stopping the rope from moving through the device.