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    Harken Line/Wire High Strength Blocks

    Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes.

    High-load composite bearings carry axial loads. Hard Lube-anodized with PTFE impregnation sheave for strength and corrosion resistance.

    25 mm (1.00 in) wire blocks use low-friction thrust washers. 38 mm (1.50 in) and 51 mm (2.00 in) wire blocks feature sideload balls between the sheave and the sideplate to minimize friction from unfair leads.