Max line Ø19mm. L: 230mm. W:124.5mm Sheave: Ø125mm| SWL: 4990 kg. Breaking strength: 9979kg. Weight: 1268g| Harken's Black Magic blocks are strong, light and smooth running, and | are also called Harken's workhorses due to their high| strength-to-weight ratio and extremely smooth running. It is the must-have| block, whether you sail locally or globally.| With Torlon roller bearing. Delrin balls in the sides take the load| sideways. Side plates and sheave are hard-anodized and Teflon-| coated aluminum. Can be completely disassembled by loosening three screws, | without loose balls.
