This 2.5''RED glass ball comes with copper rings that enable a person to use them in different ways for different items.They are mostly used for the common 3/4'' weathervane and lightening rods .PLEASE NOTE ;IN SOME CASES YOU WILL HAVE TO GLUE OR REGLUE THE COPPER CAPS ON THE WAY THAT YOU WANT,ITS EASY.HOWEVER THEY COME GLUED ON AS SHOWN. Also note these glass balls have different imperfections in them,tiny bubbles,waves, streaks ect.None of which will be seen  unless inspected up close.They are all unique as they are blown or poured glass.
ALSO NOTE . THE NORMAL 3/4'' WEATHERVANE ROD SET UP IS THAT THE TOP 2.5'' BALL SITS ON THE BEVELED PORTION OF THE 3/4'' ROD AND THE BOTTOM BALL THE 4.5'' ONE SLIDES DOWN THE 3/4'' ROD AND STOPS ON A BRASS RING.tHE BALL SET THAT WE SHIP WILL DO JUST THAT IF YOU WANT A DIFFENENT SET OF COPPER CAPS ,, PLEASE MESSAGE ME AND WELL DO THAT.