Harken 31mm Wide-Base Halyard Restrainer Lifeline Turnbuckles Ronstan Series 30 BB Orbit

Ronstan Series 30 BB Orbit Block

it offers reliable strength and corrosion resistance

Cam Block Size Single Sheave Diameter 60mm Boat Length up to 30ft

Stand-Up Functionality

the Lewmar Synchro Block – Single integrates seamlessly into modern rigs on racing yachts and fast cruisers alike

Harken 31mm Wide-Base Halyard Restrainer Lifeline Turnbuckles Ronstan Series 30 BB OrbitHarken 31mm Wide Base Halyard Restrainer Halyard restrainers prevent the halyard from wrapping around the foil on boats where the swivel isnt mounted near the masthead. Technical Description Sheave (mm) 31 mm Sheave (in) 1 1 4 in Weight (g) 170 g Weight (oz) 6 oz Fasteners (mm) 5 RH mm Fasteners (in) #10 RH in Use with furling unit 2, 2. 5, 3, 3. 25 Use with 2 3 3. 25 Base angle 160 Degrees