Ronstan Universal Ball Joint Swivel Base RF1455
Full 360 degree universal ball joint to suit shackle head Series 40 & 50 Utility blocks and Series 55 Orbit Blocks.
Base dia. 55mm.
Pin Ø 4.8mm.
M.W.L. 200 kg.
B. L. 1000 kg.
Grade 316 stainless steel.
Mainsheet on off the beach dinghies, catamarans and sports boats to 7m (23ft)