Harken 16mm Hook-In Halyard Block 391 Ronstan FRICTION RINGS double and maxi grip handles

double and maxi grip handles

All Optiparts boom end fittings are made of high quality glass fibre filled nylon and have a firm grip around the mast to ensure the mast and boom always turn together

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)

WATER REPELLENT OUTER TO SHIELD AGAINST SPLASHES AND RAIN

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

Harken 16mm Hook-In Halyard Block 391 Ronstan FRICTION RINGS double and maxi grip handlesThe 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