High-strength, low-friction 30mm marine-grade aluminum ring for 6mm rope. Suitable for a wide range of applications, they are ideal where a slight change in sheet direction minimizes friction or where high static loads would cause pulley breakage or ball bearing deformation. Nautos brand.
| For Bout | Inner diameter | Outer Diameter | Workload | Breakdown Load |
| 6 mm | ø12mm | ø30mm | 700kg | 1500kg |