Mission DREADKNOT Dock LineThe MISSION DREADKNOT Dock Line features a patent-pending Slide-Lock that automatically grips under load, making docking easier, faster, and more secure. It's built on a proven tension-based design-trusted by climbers and rescue teams for decades. To release, simply twist the capsule to unload tension and slide it free.Features Slide-lock Design; Color Black; Grey; SizeDREADKNOT 3/8" DIAMETER: 3/8"; LENGTH: 15-FT; EYELETS: 12"; DREADKNOT 1/2" DIAMETER: 1/2"; LENGTH: 25-FT; EYELETS: 12";