Single Fairlead - 25mm Diameter Stanchion - FixedThe single fairlead has been designed to be installed on a 25 mm stanchion and can be fitted with a 20 mm furling line. This fairlead has no moving parts and thus offers a greater lifespan and minimal maintenance.Applications:Perfect solution to deviate furling line of manual furlers or flying sail furlers with drumSpecifications:Materials: 316L stainless steel gradeWeight: (lb) 0.176 / (g) 80Diameter: (inch) 0.98" / (mm) 25Caption:Working Load (WL): For nautical applicationsWorking Load Limit (WLL): For industrial applications only. The safety factor is 5 times the breaking load. WLL = Breaking load / 5*Sold as an Individual The Wichard Single Fairlead you mentioned is designed for use with a 25mm diameter stanchion. Here are some details about this fairlead: Purpose: A fairlead is a device used to guide lines or ropes to prevent them from chafing or rubbing against sharp edges or surfaces. It helps to maintain proper alignment and reduce friction when lines are under tension. Single Fairlead: The Wichard Single Fairlead consists of a single channel or groove that guides the line or rope. It is designed for a 25mm diameter stanchion, meaning it is intended to be mounted on a stanchion of that size. Fixed: The fairlead you mentioned is fixed, which means it is not adjustable or movable. It is permanently attached to the stanchion. The Wichard Single Fairlead is commonly used in sailing applications, such as on sailboats or yachts, where it helps guide lines and ropes along the stanchions to ensure proper line management and reduce wear and tear.