Harken Standard Flat Riser

Harken 51mm Single Wire Block With Becket 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. Use for: Wire halyards Vangs Control lines Sheave Ø: 51 mm Weight: 163 g Maximum wire Ø: 5 mm Maximum working load: 907 kg Breaking load: 1814 kg