Harken soft-attach Fly blocks are designed to provide strength without mass, providing sailors with big power in a low-aero package. Designed specifically for high-tech line, these efficient blocks have an incredible working load for their small size. Fly blocks are perfect for ruse on foiling dinghies and sportsboats and for vang cascades and backstay systems on Grand-Prix racers.
18mm blocks feature and integrated stainless steel inner race and rivet, stainless steel ball bearings, and composite fiber-reinforced sideplates,
A length of Spectra line with a polyester cover is included.
- Sheave diameter: 18mm
- Length: 28mm
- Weight: 7.2g
- Maximum line diameter: 5mm
- Maximum working load: 125kg
- Breaking load: 450kg