TWSBI Vac 700R Iris Fountain Pen - Clear with plated aluminium trimCatch the light every time you use it The TWSBI Vac 700R Iris takes the oversized clear demonstrator body and gives it a completely different energy. The iridescent trim shifts colour depending on the light and even varies slightly from pen to pen. It still has the oversized ink chamber and visible vacuum mechanism Vac fans love, but the Iris feels less clinical and a lot more expressive. Paired with TWSBIs large #6 nib, its the kind of pen that makes