Non-toxic, water-based markers can be used on almost any surface. The alcohol- and solvent-free opaque paint covers well, is blendable, dries quickly, and can be overlaid when dry. The pen contains a valve mechanism for a tight paint seal and a ball within the barrel that mixes the paint, allowing for even paint consistency, texture, and continued, optimal results. These versatile markers can be used on paper, glass, cardboard, wood, porcelain, metal, textiles, ceramics, plastic, and much more without priming (the markers will, however, produce different results on certain surfaces with a primer). The PCF-350 brush tip marker combines the advantages of a paintbrush with the benefits of a pen. With its soft tip, it can be used for hard to reach areas, and it allows professionals, beginners, and children to experience the pleasure of painting without the props.