The Mobi-Lok™ 4 is a twin-line horizontal lifeline system designed for use on aircraft wing and fuselage during manufacture and maintenance for up to four simultaneous workers. Specifically designed for, and in conjunction with the aviation industry this system is as versatile as it is easy to use. With twin-lines of web, the system is adjustable to suit any length of wing. The system allows fall arrest safety for workers along the entire length of the wing without the need to detach. The inbuilt tension indicator increases accuracy and safety and can be run from either shop air or stand-alone units. It has been thoroughly and successfully tested to all required standards after prolonged exposure to chemicals in aviation. With a Vacuum Anchor System at your workers' side, they can anchor to virtually any smooth, nonporous surface. By eliminating the need to drill or weld, the vacuum anchor system can decrease downtime and effort, and increase productivity. It gives workers all the access and freedom of movement they want, without compromising their safety. This fall arrest system features soft and natural rubber blend seals that enable them to fasten safety and securely without damaging the work surface. The rubber seal won't breakdown and will last in a harsh environment leaving no residue. It is OSHA, CE, and AS/NZS compliant, and is independently tested and approved for fall arrest applications. For more information call (800) 642-0775 or visit www.hysafe.com.