Parker Sonnet Stainless Steel GT is a medium-sized fountain pen with a plastic grip section and a metal body. Medium tip nib is made of stainless steel and plated with 23 carat gold. The trim and the classic Parker “arrow” clip are 23ct gold-plated as well.
The pens comes with a pump-action converter to use it with bottled ink. It also can accept long or short Parker ink cartridges. You can find a wide selection of the Parker ink cartridges here.
The pen is 133mm long while capped; 124mm long uncapped; and 145mm posted. It weights 24 grams with cap, and only 14 grams without cap.