Copic Sketch – BG07 Petroleum Blue

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This is the sketch marker BG07 Petroleum Blue by Copic.  Sketch markers are available in 358 colors. Choose from a stunning palette, including a wide range of gray tones.

• Replaceable nibs
• Refillable ink
• Alcohol-based ink is permanent and non-toxic
• Dries acid-free
• Medium Broad nib for thick strokes
• Super Brush nib for variable-width strokes
• 3 nib options
• Easy-to-read color names and numbers
• Compatible with the Copic airbrush system