This is the Airflow fountain pen, a hand sculptured pen made from SEM ebonite, a hard rubber material, with very interesting colored bands running through it. Inspiration for this pen is from the Art Deco Streamline school of design.
This would be considered a large deskpen at 167mm long capped, 157mm long uncapped (including the nib) and ~ 18.5mm in diameter. The pen weighs 45 grams.
The nib is a two tone Ruthenium plated Jowo #6, but there a full range of options available via the drop down boxes on the right of the screen.