Ronstan Ratchet Orbit Block, Series 55 - Triple, Becket, Cleat, Swivel marker to allow under water viewing

to allow under water viewing as far as water clarity and light permits

single fuel inlet and mechanical choke makes it amazingly universal

Screw-on option for rope bags (screws not provided)

or for use on machinery etc

Ronstan Ratchet Orbit Block, Series 55 - Triple, Becket, Cleat, Swivel marker to allow under water viewingFeatures: Up to 20: 1 holding power Smooth easing of sheets High performance cleating Swivel shackle head for unlimited block rotation. Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points. Ultra low profile integrated beckets Applications: Mainsheet systems and spinnaker sheets on dinghies, catamarans, sportsboats and small keel boats to 9m (30ft) RF55410 when paired with a RF56330B and a RF35101 lashed to