No you get them and fit them yourself if you want them as people often require different makes or even start to get picky over colours

They can be supplied with a standard bush if requested.

A r/j is basically a motorsport item and as such wont last forever. Dont ever exect them to be a fit and forget item (if you want that fit a standard arm), but some we supplied 3 years ago are still doing daily business on a few cars I know.

Once you have the basic hardware the r/j can be changed quite easily and the cost of such would be on average £20 - £30

Cheaper than a set of inner edge worn out tyres.