Schaefer Half-Moon Mast Base / Fixed Aluminum Max Line 5/8" (16 mm) Triple Sheave(45mm) Length: 7 31/32 in

Length: 7 31/32 in

Specified as standard on production yachts worldwide and the choice of racing yachts inshore and offshore

polished finish

Suggested Boat Size: 14-16'

Schaefer Half-Moon Mast Base / Fixed Aluminum Max Line 5/8" (16 mm) Triple Sheave(45mm) Length: 7 31/32 inProduct Description Schaefer Half Moon Mast Base Fixed Aluminum Max Line 5 8" (16 mm) Half Moon base block. UC Aluminum sheave features Nomex(tm) Teflon(tm) bearing with delrin(tm) ball bearings for a low friction high strength sheave. Heavy Duty Stainless Steel cage includes a flare on each side for a low friction lead into the block. Specifications: Fixed Alum. Sheave Dia.: 2 3 8 in. (60 mm) Max Line: 5 8 in. (16 mm) Length: 3 5 16 in. (100 mm)