There are a total of 6 units measuring 20 inches long.  They measure 18.5 inches from spike to top of arch.  The green sun catcher crystals are stunning in sunlight.  They each have a circle on side so the next piece can attach smoothly.  Please view pictures carefully as pictures are part of description.  They are truly unique and very difficult to find similar.  Please feel free to ask any questions and thanks for viewing!