Two men describe lead climbing while one man in a bright green shirt climbs a climbing wall the other man wearing a dark green shirt holds the lead line and explains the process.  The man in the dark green shirt places a strap and link to the climbing wall and loops a rope through the clip.  The man reverses the strap position and loops the rope through the strap eye link.  The man in the bright green shirt continue climbing to the top of the wall.  The man in the dark green shirt continues talking to the camera.