BLUESHARK 57mm Single Stand Up Aluminum Sailing Block 2329

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.

BLOCK WORKING LOAD 500kg
BREAKING LOAD 1600kg
ROPE UP TO 12MM
WEIGHT 230g
SHEAVE DIAMETER 57 MM
316 Marine Grade Stainless Steel Hardware
Delrin Ball Bearings