Description Antal Swivel Double Shackle Block 34X6 with Shackel & C.CL Stainless Steel Mini blocks, double block sheave Ø34 Technical Description Features American Metric Ø sheave (D) 1.34 in 34 mm SWL 1322.77 lb 600 kg Ø max line 0.24 in 6 mm Side bearing - Delrin balls Sheave material - Resin Material - Stainless Steel Weight 0.18 lb 82 g