HARKEN 57mm Double Carbo Block - Swivel, Becket, 2603 Sailboat Rudder Tillers Pintles & Gudgeons_Keel Boat Lower Pintle - 1" Rudder These teardrop mast collar blocks

These teardrop mast collar blocks coordinate well with any Harken blocks in a deck layout

Easy to install

and stainless roller bearings for smooth operation

Stainless steel rope guides ensure correct entry alignment of the line into the cleat so it can be gripped securely by the cams

Unloaded main and jib sheets run out freely during mark roundings and asymmetrical spinnakers free instantly during jibes

HARKEN 57mm Double Carbo Block - Swivel, Becket, 2603 Sailboat Rudder Tillers Pintles & Gudgeons_Keel Boat Lower Pintle - 1" Rudder These teardrop mast collar blocksHarken 57mm Carbo Air Double block with Becket and grooved races for greater load capacity. Low friction Carbo AirBlocks are lightweight, strong, reliable, and economical. Consistently 30% lighter and 60% stronger than equivalent Classic blocks. The sideplates are UV stabilized, high strength resin and designed for small diameter lines favored by racers. Good for jib and mainsheet systems on high performance dinghies, and for high load control lines