These vertical mount oil coolers are CNC machined from billet aluminum and are supplied in pairs. They are very easy to mount as the integrated brackets bolt straight on to the frame down tubes, one right and one left to have a balanced look. Four stunning designs to choose from: the 190mm long "Finned" design, the 280mm long "Slimline" design, the 190mm long classic "Round" design for Softail and FXR as well as the 150mm long classic "Round" design for Sportster and the 150mm long "Dumb-bell" design for Sportster. All 3 styles are available in your choice of high-gloss polished or black moderate to hot climates. Oil lines must be ordered separately.