Max wire Ø5mm. Max line Ø6mm. Sheave: Ø51mm| SWL: 907 kg. Breaking strength: 1814 kg. Weight: 170g. Screws included.| Lightweight, low friction blocks for high load wire and line. Hardkote anodized,| Teflon impregnated aluminum sheave with composite plain bearing.| 38 and 51 mm blocks have Delrin balls to absorb lateral| load and minimize friction between sheave and block side.| All blocks can be opened so that the line can be inserted into the block.
