BLUESHARK 57mm Single Swivel Ratchet Aluminum Sailing Block 2310-R
Weight: 170g
57mm sheave accommodates up to 12mm (7/16”) line
Working Load 694 lb (315kg)
Breaking Load 2822 lb (1280kg)
Description
BLUESHARK Premium 57mm Aluminum Sailing Blocks
Made of 6061T6 aluminum alloy with anodized hard coating which is twice as thick as black anodizing to provide double protection and corrosion resistance to air and salt water.
Delrin balls and marine grade 316 stainless steel hardware.