ISC D4 DESCENDER double snap Silky blades are designed to

Silky blades are designed to be replaced rather than resharpened for consistent performance

Internal pockets for throwbags — dedicated storage keeps throwbags organized and accessible

reducing pressure points and keeping you comfortable through extended climbs

reducing localized pressure points and improving overall rigidity — particularly beneficial during long climbs

ISC D4 DESCENDER double snap Silky blades are designed toThe NEW D4 Work Rescue Descender features a unique and innovative cam action, which offers precise control at slow or fast speeds. The progressive cam works by way of one cam operating inside another cam. The D4 has a 240kg (500lbs) working load limit which means it is suitable for two man rescue, without the need for the creation of extra friction. The handle mechanism is designed to rotate through 360 making its use easier and simpler. The handle