Trad climbing, short for traditional climbing, is a type of free climbing in rock climbing where the lead climber places climbing protection into the climbing route as they ascend. The second climber, also known as the belayer, removes this temporary climbing protection as they climb the route after the lead climber has reached the top. Unlike sport climbing, where the routes use bolts, trad climbing involves carrying and placing protection such as chocks and camming devices rather than clipping into preplaced bolts. Trad climbing requires a large and somewhat complex set of gear thats used instead of bolts to anchor you or your rope to the rock, and to arrest a fall. The gear used in trad climbing includes chocks, camming devices, slings, carabiners, and ropes. Trad climbing is more dangerous than sport climbing as it requires a complete, foundational understanding of ones own climbing ability, placements, anchors, knots, rappelling, and logistics.