Schaefer Curved/Base Single/Delrin Block, Max Line 7/16" DN Ronstan Series 40 BB Double

Ronstan Series 40 BB Double Block w/ Swivel Head

Suits Series 26 & 30 batten system

316L Stainless Steel

Multi-hulls to 17m (56ft) or sail area 93 m2 (1001 ft2)

• Boat-specific tube and sling lengths provide a custom fit for each boat

Schaefer Curved/Base Single/Delrin Block, Max Line 7/16" DN Ronstan Series 40 BB DoubleProduct Description Schaefer Curved Base Single Delrin Block, Max Line 7 16" Aluminum cheek block with curved base. Curved stainless steel base fits spar diameters up to 2". Delrin(tm) plain bearing sheave ensures high safe working load and is good for static loads. Specifications: Sheave Dia.: 1 7 16 in. (37 mm) Max Line: 7 16 in. (11 m) Length: 3 11 16 in. (949 mm) Width: 1 in. (25 mm) Height: 3 4 in. (19 mm) Fasteners: (4) #10 RH (5 mm) C C: 3 3 16