Harken 18mm Block (Fly Soft-Attach) Fixtures & Fittings They are made from 2mm

They are made from 2mm neoprene and feature a comfortable plush lining

metal & painted surfaces

active boats in moderate-weather conditions

Easy to use

after keeping water fresh and pure for drinking

Harken 18mm Block (Fly Soft-Attach) Fixtures & Fittings They are made from 2mmHarken 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 use on foiling dinghies and sportboats and for vang cascades and backstay systems on Grand Prix racers. 18 mm blocks feature an integrated stainless steel inner race and rivet,