Body Material: Resin
Length (capped): 144.9 mm/5.70"
Length (uncapped nib-end): 135.8 mm/5.34"
Length (posted): 155.87 mm/7.12"
Barrel Diameter: 12.6 mm - 14.0 mm/0.50" - 0.53"
Section Diameter: 10.4 mm - 11.8 mm/0.41" - 0.46"
Nib material: Steel
Weight: 30.9 g
Fill type: Piston-filler.
Where to buy: La Couronne du Comte
With moderate pressure, the nib flexes to give moderate line variation, so in that regard, the flex is nice.
The piston-turning knob is exposed enough to operate easily and comfortably. The section is also nice and comfortable, smooth with a slight flare towards the nib.
While I find this pen intriguing, I was disappointed by its flex capabilities. The pen is attractive, I think it's great that it's a piston-filler, the nib is attractive, the feed is neat, and it writes nicely unflexed, but not drying out so easily is a real downer. If it was a lower price, I'd say jump in, but at full retail price, it leaves me hesitant.
For more on this pen, check out Serious Nibbage Part 8!