Pilot Tsuwairo is a collection of pigmented fountain pen inks that are water and light resistant. Your handwriting will last forever and will not discolor. Pilot Tsuwairo Blue comes in...

Pilot Tsuwairo is a collection of pigmented fountain pen inks that are water and light resistant. Your handwriting will last forever and will not discolor. Pilot Tsuwairo Black comes in...

Pilot Tsuwairo is a collection of pigmented fountain pen inks that are water and light resistant. Your handwriting will last forever and will not discolor. Pilot Tsuwairo Blue Black comes...