The PX-21 paint marker from Uni-Ball is an incredibly versatile oil based permanent marker that writes on almost all surfaces including metal, wood, glass, plastic, fabric and stone surfaces.

• Permanent oil-based paint markers.
• Opaque, glossy, intense color.
• Ideal for art projects.
• Marks on a variety of surfaces.
• Ideal for heavy-duty or industrial use.
• And can be used both inside and outside