Harken 57mm Double Block — Swivel, Becket 2603 Broad Brim Easy drain mesh underside

Easy drain mesh underside

Large operating temperature range - Suitable for all marine environments

and in this book he’s sharing his collected wisdom

High intensity (1 candela) strobe

Allows efficient dual battery charging without needing regulator adjustment or rewiring

Harken 57mm Double Block — Swivel, Becket 2603 Broad Brim Easy drain mesh undersideLow friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming. Sheave (mm) 57 mm Sheave (in) 2 1 4 in Length (mm) 142 mm Length (in) 5 5 8 in Weight (g) 187 g Weight (oz) 6. 6 oz Maximum line (mm) 10 mm Maximum line (in) 3 8 in Maximum working load (kg) 720 kg Maximum working load (lb) 1584 lb Breaking