Harken 29 mm Zircon Block waveline reflecting your favourite watersport -

reflecting your favourite watersport -

With the mainsheet

suitable for all types of halyard systems

Allen blocks claim to be the strongest and best available on the market

Harken 29 mm Zircon Block waveline reflecting your favourite watersport -The newest Zircon offerings are six models with 29 mm sheave diameters. These expand the Zircon offering from eight models to eighteen. Zircon is not an all purpose alternativeno block is. But these smaller sizes make Zircon appropriate for control lines where multi part purchases are required. Zircon reacts immediately. So, when the pressure gets light and you ease that 24: 1 Cunningham rigged under the deck or want to let the jib lead forward for