Brush tips transform what's possible with paint markers. This flexible 1.0mm-4.0mm tip moves like an actual paintbrush, letting you vary line width through pressure and angle, fine details with the tip, broader strokes with the side. That responsiveness makes techniques like calligraphy, gestural drawing, and expressive mark-making genuinely fluid rather than constrained by a rigid bullet point.

Water-based pigment writes opaque across porous and non-porous surfaces: wood, glass, fabric, metal, plastic, ceramic. The paint becomes permanent once dry on absorbent materials while remaining erasable on smooth surfaces like glass or laminate, useful for temporary signage or designs you'll change seasonally. Dilute the ink with water for watercolor effects, or blend colors directly on your surface while wet. Reversible tips maintain their shape through heavy use, when one end wears, flip it to continue working.

POSCA's opacity means dark surfaces show your colors true. Customize sneakers, letter signage, detail mixed media pieces, or add highlights to illustrations. The brush tip handles both precision work and covering area faster than fine bullet tips manage, making these markers practical for projects that demand both control and coverage.