The Wichard Proline lifeline has one dual-action safety hook, one stainless steel hook and an elastic 2m long strap. The safety hook is made of anodized aluminum, which is a lightweight and corrosion-resistant material. The safety hook is easy to open and lock with one hand. The opening is wide (26 mm) and the tip of the safety hook is shaped so that the hook is easier to use on lifelines and deck loops. Overload indicator (World Sailing OSR) with integrated shock absorber. Complies with ISO 12401:2009 standard and World Sailing regulations (OSR).