Replacement nib for TWSBI pen models: Diamond 580, 530, 540.
Modern fountain pen with built-in piston converter.
Modern fountain pen with built-in piston converter.
Modern fountain pen with built-in piston converter.
The TWSBI Pipe is a tube made of stainless steel that will use the ink to the last drop.
TWSBI Pipe is compatible with pens of the series: 580s, 580AL, 580ALR, 580RG, Diamond Mini, Diamond Mini AL and Diamond Mini RG.
Method of use:
TWSBI Pipe should be fitted to the pen section with the built-in converter, then wet and filled with ink.
Material | Stainless steel
Manufactured in Taiwan.
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Replacement nib for TWSBI pen models: Diamond 580, 530, 540.
Modern fountain pen with built-in piston converter.
Modern fountain pen with built-in piston converter.
Modern fountain pen with built-in piston converter.