Black Magic Airrunner 150 mm Ref. Part 3264 Ø of rea (mm) 150 mm Ø of rea (in) 5 15/16 in Ø Maxus rope (mm) 25 mm Ø maximum rope (in) 1 in Maximum workload (kg) 6804 kg Maximum workload 15000 LB These pulleys are used for bastaques, which are used to adjust the bend of the mast as a function of the force of the wind, on the upper sailboats. The lateral openings and the embedding of the axis pins in the thickness of the cheek generate a smooth aesthetic and prevent the hanging of the sectors. Hard cheeks and re anodized ptfe treated for a perfectly smooth surface and maximum protection against UV. Low friction bearings with a central cage now the separate Torlon® rolls and parallels compared to each other. Torlon is a registered trademark by Solvay Advanced Polymers L.L.C.