Petzl William Carabiner Helmets it can be used in

it can be used in single or double mode

- semi-rigid

High efficiency

but it is equally effective in blocking and ascending the rope

- immediate shift from lowering position to hauling position without having to transfer the load

Petzl William Carabiner Helmets it can be used inOverview Lightweight asymmetrical large capacity carabiner The lightweight WILLIAM large capacity asymmetrical carabiner is made of aluminum. It has a pear shape that is practical for easily connecting multiple items. Its fluid interior design and Keylock system facilitate handling. The WILLIAM carabiner is available in three locking systems: automatic TRIACT LOCK or BALL LOCK, or the manual SCREW LOCK. WILLIAM can be used with the CAPTIV bar to favor