OPUS 88 Colour Demo
The OPUS 88 Colour Demo is an exciting new version of the basic transparent Demonstrator in three colours: Red, Yellow and Green.
The OPUS 88 Colour Demo is an eyedropper pen featuring an effective ink flow control valve which enable the ink flow to be shut off completely. Featuring a large No 6 Jowo nib, it is an impressive size with a stonking 3.7 mm ink capacity.
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