Harken 16mm Hook-In Halyard Block 391 Ronstan FRICTION RINGS Height (in) 15/16 in Length

Height (in) 15/16 in Length (in) 1 7/8 in Length (mm) 48 mm Width (mm) 24 mm Width (in) 15/16 in Weight (g) 8 g Weight (oz)

Sheave Ø (mm) 16 mm Sheave Ø (in) 5/8 in Length (mm) 60 mm Length (in) 2 3/8 in Weight (g) 18 g Weight (oz)

Made with a combination of high stretch neoprene and 3D air-mesh the upper is highly supportive

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Harken 16mm Hook-In Halyard Block 391 Ronstan FRICTION RINGS Height (in) 15/16 in LengthThe Harken 391 16 mm is Harkens smallest block. It is perfect for small synthetic control lines found on high tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load. Sheave (mm) 16 mm Sheave (in) 5 8 in Length (mm) 41 mm Length (in) 1 5 8 in Weight (g) 13 g Weight (oz) . 5 oz Maximum line (mm) 5 mm Maximum line (in) 7 32 in Maximum working load (kg) 113 kg Maximum