These are machined from 3/8 thick 6061 Alum. and tumbled to a smooth Matt finish that can easily be polished out by hand if you want them shiny.  They fit the V7 Racer models and the earlier V50 bikes that used the same style valve covers.  The Photo shows the style valve cover these fit.  They are sold in Pairs, Right and Left.  You use the stock bolts.