General description American Pattern Block with Swivel Oval Eye, designed for heavy-duty lifting applications. This single sheave block is ideal for use on marining boats and other lifting needs, ensuring reliable performance. Technical specifications S.W.L: 5 Tonnes Size: 300 MM Wire Diameter: 20-22 MM Other information Product Code: SFAPB12 Please ensure that the S.W.L is not exceeded when using this block.