The repeated airmark pen allows you to customize their mark collection by filling your choice to mix and create your own color.The applicable ink can be alcohol, pigment, acrylic ink. Material - painted paint pen is which is light weight. High-hardness shell is more resistant to wear, protecting your paint/acrylic ink. Steel ball design - each filled paint pen is designed with 2 steel balls to avoid watercolor or pigment solidification to make the writing smooth; you should put the ball in the pen holder first, then ink into the ink, and finally tighten the pen. Applicable scenarios - you can fill your favorite color with ink pen, and then start to paint on art graffiti, exhibition, autograph, canvas, windows, cars, T-shirts, clothing, shoes, glass, mirrors or paper painting.It has a variety of uses and is very practical. We offer a 6-piece set of paint pens! These pens are of excellent quality. They feature an high quality barrel that offers excellent corrosion resistance, protecting the ink inside. These touch-up paint pens are outstanding, providing you with a smooth and precise writing or drawing experience. Don't miss out on this set of premium paint pens! Colour:As Shown Material:Plastic Package Contents: 1set * graffiti markers(3 x round pen tip, 3 x oblique tip) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.