This 6.5'' BLUE 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.if you want the ball to fit a 1/2'' rod message me immediately after you buy it and ill send the 1/2'' hole version.The 3/4'' hole rings ships by default unless you message me otherwise.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.