Harken 57 mm Zircon Block 2195 Ø2mm Drainage receptacles (included) press-fit onto

Drainage receptacles (included) press-fit onto the threaded studs to capture moisture and send it to the bilge

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Base Size mm

29748 Length 44mm Width 37mm Intrusion 14mm Base Shape Rectangular Mount Screws 4mm c/s

Harken 57 mm Zircon Block 2195 Ø2mm Drainage receptacles (included) press-fit ontoZircon blocks help trimmers match sail shapes to new conditions immediately. At the core of the Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings separated so they dont bunch, touch, and stop each other. The result is the most efficient small boat block Harken has ever made. Zircon blocks are available in 40 and 57 mm sheaves in single and double blocks, with or without beckets. Sheave