The three different harness line models from Severne all have a high-density PU tube with a wall thickness of 2 mm, which enables a quick visual inspection of the rope. This allows you to recognise whether the rope is damaged on the way to the water. Fixed and Quick Fix should only vibrate minimally and thus prevent unintentional hooking or catapults. You can attach the Quick Fix version without having to take the boom apart. The variable Race version comes with a 25 mm Cam-Lock buckle and non-slip webbing and has an adjustment range of six inches.