The Spinlock 25mm Stanchion Furling Line Lead is an adjustable and compact furling line guide system that reduces friction for smooth furling. Its unique tracker-ball angle adjuster ensures perfect sheave alignment and it comes with all necessary fastenings for easy installation. A replacement sheave for the WL/2 model is also available. This versatile system can handle line diameters up to 12mm (1/2") and has a safe working load of 300kg (660lbs). It is lightweight and compact, weighing only 40g (1.4oz) for WL/1 and 70g (2.5oz) for WL/2. The fasteners are integral and fit stanchions with a diameter of 25mm (1").