Use Capture Pulley as a Pulley or Rope Clamp
PETZL Capture Pulley features an ergonomic spring-loaded catch that's easy to maneuver with gloves on and can be locked in the open position to use as a simple pulley. Trigger cam with teeth and cleaning slot works even on dirty or icy ropes. Pulley features one fixed side plate and one lockable swing sided plate. Rope installs easily even if the Capture Pulley is already attached to the anchor. Auxiliary attachment point creates different types of hauling systems.