Ronstan Ratchet Orbit Blocks, Series 55 - Single, Swivel Head, Auto & Manual battlestick telescopic alloy tiller extension - inboard grip post & hub: Grade 316

post & hub: Grade 316 stainless steel

Included cable attaches to u-bolt mid way along bow

Economically priced black EDC coated steel seat pedestals suit most brands of seats that have a 175mm (7") seat swivel

this 60-degree fitting is designed for 1" tubing

Size is determined by the approx size top to bottom when spread onto the hull flange

Ronstan Ratchet Orbit Blocks, Series 55 - Single, Swivel Head, Auto & Manual battlestick telescopic alloy tiller extension - inboard grip post & hub: Grade 316Features: Up to 20: 1 holding power Smooth easing of sheets High performance cleating Swivel shackle head for unlimited block rotation. Stainless steel shackle head and compatibility with sharp fixing points. Automatic & manual ratchet block Application: Mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8m(26ft). Halyard, vang and backstay applications on boats to 8m (26ft). Spinnaker sheets on sportsboats and