: Oil-based, permanent, and highly opaque. These are industrial-grade and work on metal, glass, and stone.

: A dedicated writing instrument retailer that stocks the Uni Paint PX-20 in various colors. Specialty Art & Graffiti Shops

Professional artists and graffiti writers often prefer these stores for their curated selection and specialized knowledge:

For the widest selection of colors and tip sizes (Extra Fine to Broad), these platforms offer reliable shipping and bulk options:

When buying, ensure you are selecting the right series for your project:

: Water-based acrylic markers. These are popular for illustration and crafts because they are odorless and non-toxic, but they are not as permanent as the oil-based PX line. Review: Uni Posca Opaque Paint Markers - Parka Blogs

: A top choice for both individual markers and bundle sets. You can find everything from the Uni Paint PX-30 Oil-Based Broad Line to the finer PX-20 Medium Line .

Uni Paint markers, particularly the oil-based and PX-30 series, are widely available through major online retailers, specialized art supply stores, and graffiti-focused shops. Best Online Retailers