specifically designed for high-speed sailing

This development permits a larger fluke surface area than competing designs which rely on simple dead weight

sanitized® fabric

these efficient blocks have an incredible working load for their small size

Sheave Ø 30 + 20 mm Max

Harken 57mm Flip-Flop SB Block 2142 International specifically designed for high-speed sailingSmall Boat Flip Flop blocks pivot around the line axis to keep the line close to the deck. Hinged construction allows for various lead angles. Part No. 2142 Sheave (mm) 57 mm Sheave (in) 2 1 4 in Maximum line (mm) 10 mm Maximum line (in) 3 8 in Maximum working load (kg) 227 kg Maximum working load (lb) 500 lb