XINDA Outdoor Three Pulley Cableway Crosses Rock Climbing Hoisting Ball Bearing(Red Gray)1. Three groove pulley, more stable, better fit the rope, polished surface, with internal ball bearings, allowing you to experience a different smoothness 2. The rotatable load bearing hanging point design saves the cumbersome steps of inserting the rope and directly inserts it into the internal groove, simplifying the operation steps 3. High strength aviation aluminum material, 2200 kg working load 4. Hard anodizing process, the coloring is more