Harken 57mm Zircon Block 100m The Seasure drop nose pin

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

Footnote - Maximum working loads and breaking loads for blocks based on cam strengths

All wetsuits will fit over the top of the pads which secure to your legs

Stretch Percentage at 20% of Breakload - 4

and other systems where lightweight blocks are needed

Harken 57mm Zircon Block 100m The Seasure drop nose pinHarken 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