As counter to the Mountain Climbing the Rappelling is a process of descending down with the help of rope. It is the practice of descending down a rope in a controlled manner. Climbers use this technique to descend down the mountains when a cliff or slope is too steep or dangerous to slide down without protection. Rappelling is also called Abseiling which means to rope down.
Rappelling is serious business as Rock Climbing and most of the Champs make mistakes during descending. Here mentioning about the Figure of Eight, Mittens Etc. besides the Items mentioned in Rock Climbing shall be justifiable in context of Rappelling or Abseiling.