Harken's soft-attach fly sailing blocks are designed to provide superb strength without mass, providing users with big power in a low-aero package. Fly Blocks are incredibly efficient, with a high working load, despite their small size. Specially designed for high-tech lines, fly blocks are perfect for use on foiling dinghies and sportboats, and for vang cascades and backstay systems on Grand-Prix racers.
This 18mm block features an integrated stainless steel inner race and rivet, stainless steel ball bearings and composite fiber-reinforced sideplates.
Technical Specifications:
| Sheave Diameter | 18mm |
| Length | 28mm |
| Weight | 17g |
| Maximum Line Diameter | 5mm |
| Maximum Working Load | 204kg |
| Breaking Load | 680kg |
