HMS Blandford Questions

[Modelship Dockyard]

Those were the sheaves, conbine two of the parts together you can create one a single sheave. This is a optional thing to build.

Thanks for getting back to me I am sure you are very busy with the new kit and Xmas on its way
What are the circular parts in 2 sizes ?they seem to have got everyone confused... not enough for cannon wheels next to the eyelets on your picture
Thanks Andy