Chrome plated custom oil tanks in Domed Cylindrical or Octagonal style. Tanks feature a battery box measuring 7"x4" (178mm x 102mm) and come with oil tank plug, brackets, anti-vibration rubber stud mount and hardware. Fit Softail models 1989 thru 1999, as well as most custom frames. Domed tanks measure 12 1/2" (320mm) long and have a diameter of 6 1/4" (160mm).