You've heard of teaching an old dog new tricks--haven't you? Well, Ronstan took that adage to a new level with their Constrictor Textile Rope Clutch. It uses the simple constriction power of a textile fabric that increases its hold and gripping power as the load increases. It boasts a 3x lighter construction than most conventional clutches and a grip like no other. The constriction works like an octopus locking down on the line--distributing the load evenly over a larger portion than conventional style clutches. This works great for mast-mounted halyards and much more. To release the load, simply pull on the release string and it'll release tension without the need of a winch.