This Harken Zircon 57 mm single block with becket is an ultra-free-running block for sailing where low friction and precise handling are crucial.
The block is equipped with ceramic ball bearings, which provide extremely smooth running and make it particularly suitable for trimming and sailing in very light wind.
With a maximum line diameter of 10 mm, a working load of 150 kg, and a breaking strength of 450 kg, it is designed for efficient and reliable use on board.
Key features
57 mm single block with becket
Ceramic ball bearings for very low friction
Suitable for light air sailing
Maximum line Ø10 mm
Breaking strength 450 kg
