Dense pigmentation makes these India inks flow smoothly while maintaining intense color saturation that holds crisp lines without feathering or spreading. Dr. Ph. Martin's Bombay formulation works across brushes, airbrushes, technical pens, and dip pens without clogging, the consistency stays reliable whether you're ruling precise linework or building up atmospheric washes. Once dry, the waterproof finish becomes permanent and lightfast, essential for archival illustration and calligraphy that needs to endure.

Black and white deliver opaque coverage that shows up clean over existing layers. The remaining colors are transparent, perfect for layering techniques and color mixing. Non-toxic, acid-free pigments thin with water for graduated washes or controlled dilution, then adhere firmly to nearly any surface. Each half-ounce bottle features a flat top that prevents rolling on tilted work surfaces.

Set 1 provides core spectrum colors plus black and white, yellow, bright red, red, magenta, grass green, green, teal, blue, violet, and brown. Set 2 offers earth tones and secondary hues: golden yellow, orange, tangerine, crimson, cherry red, red violet, aqua, turquoise, yellow ochre, terra cotta, van dyke brown, and sepia. Choose the palette that matches your subject matter or combine both sets for comprehensive color range.