WHY CHOOSE OUR PAINT MARKER: High quality ink is Chemically Stable,Waterproof,and Fade Resistant -- making it easy for you to seize your inner creativity. Dries quickly, no worried about messing up while painting. Water-based pigment ink is odorless, non-toxic,lightfast and water resistant. Used on almost any surface Acrylic paint marker pen used for decorative painting, artistic creation, and general craft painting projects. It can be used on almost any surface. Including Wood Plastic Rock Leather Glass Stone Metal Canvas Ceramic etc. Its versatility is unmatched, it can be used by the most talented artist or by a beginner for craft projects creation. HOW COULD BE USED IT: In order to get the best results, it is important that the following instructions are followed. 1. With cap on, shake well to mix paint. When you hear the ball rattle inside, you’ll know the paint is mixing. 2. Press the tip to relesea the air.Press the tip several times vertically until the ink exudates. 3. Test on paper before use. Then enjoy painting on different surfaces. If the nib dries out, you can press it again. 4. Make sure to put the cap back on the pen after use. protect tip and keep from drying.