Ronstan Ball Bearing Utility Blocks - Series 20 - Single, Becket, Loop Head indmarconversion Black plastic mount that fixes

Black plastic mount that fixes to the transom

Lightweight

and the US Navy/USCG MIL-R-21607 and MIL-R-7575

Note this can take some time for this process to be completed from the supplier

Ronstan Ball Bearing Utility Blocks - Series 20 - Single, Becket, Loop Head indmarconversion Black plastic mount that fixesLow friction High static and dynamic load capacity Lightweight Precision moulded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance & low friction. Can be fitted with a shackle in either of two planes to allow correct alignment of the block. Range Seletion Advice: https: www. ronstan. com. au marine5 SAblocks. asp