3M DBI-SALA EZ-Line Retractable Horizontal Lifeline System is equipped with a built-in winch, tension, and impact indicators; the retractable design allows the user to quickly and efficiently set up any length of a system in moments and can be dismantled just as fast.3M DBI-SALA EZ-Line Retractable Horizontal Lifeline System was designed with the user in mind. Self-contained in a casing that helps eliminate large and bulky coils of cable that are difficult to set up, relocate, and store. 3M DBI-SALA EZ-Line Retractable Horizontal Lifeline System helps provides mobility and fall protection when working at height. 3M DBI-SALA EZ-Line Retractable Horizontal Lifeline System is ideal for protecting workers operating in the horizontal plane who may not have continuous access to alternate anchorage points.