Harken 57mm Zircon Block 100m Stretch Percentage at 20% of

Stretch Percentage at 20% of Breakload - 4

The Seasure drop nose pin has a spring loaded mechanism that positively locks the pin in either the open or closed position

Maximum working load - 2750kg

Sometimes due to global availability we may not be able to supply a Hyde sail but will provide another class legal alternative from another manufacturer

and other systems where lightweight blocks are needed

Harken 57mm Zircon Block 100m Stretch Percentage at 20% ofHarken 57mm Zircon Block The Harken Zircon blocks are the most efficient blocks on the market and this helps trimmers match sail shapes to new conditions immediately. The Zircon performance comes from industrial ceramic ball bearings that are mounted in a caged race. The cages keep the bearings separated so they dont bunch, touch, and stop each other resulting in the most efficient small boat block Harken has ever made. The 57mm Zircon efficiency is