"The chain stopper is installed between the windlass and the bow roller in order to take the load off the windlass, either when the yacht is anchored or tensioning the anchor chain when the anchor is stowed. Windlasses which have two gypsies or a gypsy and a drum, need the chain stopper in order to isolate the one gypsy and either work with the other gypsy or with the drum. Chain stopper 14-16mm Stud link • Chain stopper is designed to be used with chain size 14mm or 16mm stud link chain and 16mm normal chain. • This model provides an increased safety by holding and blocking the chain and the anchor at the same time. • AISI 316L Stainless steel • Integrated devils claw for taking up the chain tension off the windlass. Chain stopper 12-13-14 mm normal chain • Chain stopper is designed to be used with chain size12-13-14mm normal chain. • This model provides an increased safety by blocking the anchor chain. • AISI 316L Stainless steel"