TWSBI ECO Clear fountain pen
The name says it all, the TWSBI Eco is one of the most affordable fountain pens available with a fixed piston. The round barrel of this fountain pen is also transparent, so that the ink supply is clearly visible. Remarkable are the faceted hexagonal cap and fill button. Several variants are now available.r.
This fountain pen is also easy to disassemble completely for those who are more adventurous. A key and some grease for the piston are included in the package. The pen has a rubber 0-ring on the barrel, which acts as an extra gasket when the cap is screwed onto the pen. The nibs are made of steel, available in different writing widths.