Condition: New Brand: NAUTOS Manufacturer Part Number: 92083-30 Part Type: Sailing Hardware & Gear 92083-30 6:1 MAINSHEET SYSTEM BLOCKS ULTRALIGHT 1 triple ratchet 57 mm sheave with cam cleat and aluminum central sheave 1 triple 57 mm block fix or swivel FACTORY WARRANTY WORKING LOAD 990 LBS BREAKING LOAD 1400 LBS ROPE UP TO 1/2"' 12 MM SHEAVE DIAMETER 57 MM WE COMBINE SHIPPING CONTACT 95423526...