Paul Mayen Mid-Century Modern Large White Plexiglass Three Cylinder Floor Lamp Three alternating sizes of white plexiglass tubes with chrome bases on a round white metal base with on/off push button. Currently there are two green bulbs and one white bulb. The white tubes from smallest to largest measure 42", 49" and 56" tall. They each have a 5" diameter. The white metal base has a 12" diameter. Measures 12" diameter and 56" tall.