Gridline to Dome Perc Tube with Color AccentsThe gridline to dome perc can be made with the 60 hole, 120 hole, or the 180 hole triangle. I usually put the dome perc about 2 inches above the main perc. The dome perc comes with either a spike as shown, or a small matching color ball (you can email me which you want or the default is a ball). These double perc tubes really function! Full color accents on the mouthpiece, joint, bridge, base lip, and ring seal under the perc. 18mm hand made, hand