TWSBI Eco clear fountain pen ballpoint pen cartridge/converter filling system and gold

cartridge/converter filling system and gold plated gold plated finish

Now there is this version in copper

The Kaweco Sport is used with ink cartridges or a converter so you can also fill your pen from a bottle

After the black and blue model of 1995

featuring a spindle that turns faster than the barrel’s end piece thanks to two distinct threads

TWSBI Eco clear fountain pen ballpoint pen cartridge/converter filling system and goldDe TWSBI Eco is made of transparent plastic, which provides a wonderful view on the inside of the pen, the cap and piston mechanism are made of clear plastic. The pens character will change with every other color you fill it with. For the adventurous people, the pen is easy to take apart for servicing or cleaning. A key and silicone grease are provided with the pen.