a mechanical device used to ascend a fixed line. Will allow movement in one direction only, creating a handhold for the climber.

Devices used to ascend a rope e.g. prusik loop or jumar

Devices (such as Jumars, etc.) used in aid climbing that are designed to grip the rope so that one may ascend directly up a fixed rope.

portions of letters that rise above the top of the s-height

Part of lowercase letters that extend above the line, as with the letters and