Must be installed in the extended position (no slack).
No tools needed - easy to install and remove.
Safety Notes:
King safety cable must be installed in the extended position (no slack).
The Canada Occupational Safety and Health regulations Part XIII, 13:6b states: "Where an air hose is connected to a portable air powered tool used by an employee, a restraining device shall be attached to all hose connections, in order to prevent injury to an employee in the even of an accidental disconnection of a hose".