Harken 51mm High Tension Block Ai_Description Moulded from the revolutionary Alanite

Moulded from the revolutionary Alanite material which diffuses the build up of heat away from the jaws - incredible wear resistance

Sheave 22 mm Length  51 mm Weight  57 g Maximum Line  6 mm Maximum Working Load  227 kg  Breaking Load  544 kg

The 4mm neoprene upper provides solid warmth for spring and autumn sailing in UK waters

Mega Pro-Lead Medium – An acetal cage with additional wire frame that fits around the exit side of the cam cleat

Harken 51mm High Tension Block Ai_Description Moulded from the revolutionary AlaniteHarken 51mm High Tension Block Lightweight, low friction wire blocks carry wire halyards and high strength control lines on boats of all sizes.