Image The holes in the mouthpiece are huge, but the hole on the backside is about half that volume. Credit GuyB Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 5 of 14Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter GuyB 1/31/2007 3:22pm Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter