Harken 57mm Double Block — Swivel, Becket 2603 Broad Brim Supplied complete with plastic cleat

Supplied complete with plastic cleat and stainless steel fasteners

Reinforcement fabric on bottom hem

Large operating temperature range - Suitable for all marine environments

Easy drain mesh underside

Harken 57mm Double Block — Swivel, Becket 2603 Broad Brim Supplied complete with plastic cleatLow 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