Ronstan's range of continuous line furling systems puts great performance and reliability within the reach of cruising and racing sailors alike. The top swivel is the upper half of the system and the fork is designed for use with Ronstan's dedicated torsion line thimble. Ronstan swivel bodies are made from hard anodised grade 6061 T6 aluminium for durability and corrosion protection. Grade 2205 stainless steel is used for the load bearing shaft for optimum strength to weight ratio. This swivel features a maintenance free, factory sealed bearing, retained clevis pin and snag-free low profile shackle pin head. Replace the clevis pin with RS212080 top swivel lashing pin to provide a more positive drive to the head of the sail and a tighter furl. Specified weight excludes shackle. Designed to work with standard furler RS212000 or top-down furler RS212100, it is rated to 3,600kg NBL.