57 mm Carbo Flip-Flop blocks

Small Boat Flip-Flop blocks swivel around the sheet axis and hold it close to the deck. The tilting design makes them suitable for a wide variety of applications. Lightweight 6061-T6 aluminum machined stringers pivot on fiber-reinforced plastic blocks. The pulley runs exclusively on ball bearings for fast trimming and feathering under any load. Ball bearings, pulley and cheeks are UV-stable with carbon blacking for optimum protection. The Ratchamatic® models run freely under light load and automatically engage a ratchet as the load increases, increasing the holding force up to 15:1. The engagement load can be set higher or lower to suit the sailor's needs and the conditions. Reversible clamp arms are adjustable over a wide range and can be fixed as required by the trimmer.