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Lightweight, low-friction wire blocks guide wire halyards and high-strength control lines on boats of all sizes. High strength composite bearings support axial loads. Hard Lube anodized, PTFE impregnated sheaves for strength and corrosion resistance. 1.00" wire blocks feature low friction thrust washers. 1.50" and 2.00" wire blocks have side ball bearings between sheave and cheek to minimize friction from angled lines.
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