Ronstan Orbit Blocks - Series 75 - Single, Universal Head multiflex They are self priming up

They are self priming up to 3

325mm (13") height

With a complete range of car profiles and feet there is a Ballslide solution for most available mast profiles and luff groove shapes on boats up to 18m (60ft)

Ideal for use on mainsheet

Ronstan Orbit Blocks - Series 75 - Single, Universal Head multiflex They are self priming upThe highest strength to weight ratio Minimal friction loss, especially when working at high loads Totally reliable and trouble free performance Simplicity of design and construction to facilitate maintenance and servicing Elegant, functional styling and finish. Lockable swivelling head post High strength forged shackle Orbit blocks are a no compromise product range developed to meet the demands and expectations of the very dedicated and increasingly