Ultra-light and compact at only 53g but with 91% efficiency, the Nano Traxion is a versatile progress capture pulley with various features. The toothed cam will grip wet, icy and even muddy ropes ensuring safety even in the most hazardous terrains. This combined with the sealed bearing within the pulley housing provides smooth use and ensures you can control the rope with ease.Sealed ball bearings Extremely lightweight and ultra-compact Rope installation diagrams engraved inside the pulleyLocks even onto frozen or muddy ropesMaterial: Aluminium Weight: 53gMinimum rope diameter: 7mmMaximum rope diameter: 11mm Efficiency: 91%Sheave diameter: 18mmWorking load: 4kN Breaking strength: 15kN