Harken 40mm Single Zircon Block with Becket clamcleat Signature embossing on the elbows

Signature embossing on the elbows

NEW softer-compound thermo-foam sole for next-level comfort

the back of the knees & other parts where elasticity is needed are made with 2mm and 3 mm superstretch neoprene

Structured foam front panel

Sheave Diameter: 28mm

Harken 40mm Single Zircon Block with Becket clamcleat Signature embossing on the elbowsThe 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