Blocking teeth design grips the rope to prevent slipping and falling when the user tilts without weight, enhancing safety during weightless or repositioning moments. Applications and versatility - Quality pulley built for mountaineering, caving, exploration, tower work, climbing, rappelling, and aerial work. - Designed to support a range of rope access and rope work activities with reliable performance in demanding environments. Material and construction - Made from 7075 aviation aluminum material with high tensile strength for stability and safety under load. - Built to resist wear and provide long service life in harsh outdoor or industrial settings. Performance and handling - Not easy to slide when hanging, delivering more uniform force distribution for smoother operation and control. Use scenarios - Mountain expeditions and rope ascents in rugged terrain where reliable grip and smooth rope handling are critical. - Caving or vertical exploration requiring secure rope control in confined or obstructed passages. - Tower maintenance, aerial work, and other industrial rope access tasks that demand stable, predictable handling.