This Shockwave 2 100% tie-off lanyard is made with extra durable material to allow tying back. The hook attaches to your harness, while one of the carabiners may be wrapped around a pipe, tower strut, post or other anchor point and clipped back onto the lanyard webbing. The other leg of the lanyard then goes to your next anchor point as you move along the structure. Beware of using this technique with other lanyards that are not specifically adapted for this purpose.
The double leg ShockWave II Lanyard is a tie-back lanyards that expands to 6 feet and retracts to 4.5 feet. It is equipped with the I-Safe, which enables the customer to visually see if the lanyard has been in a fall. That way they know immediately to take that lanyard out of service.