Review on Dual Sided Brush Pens: No Bleed Fine Point Nibs, Vibrant Ink Colors - Calligraphy Set for Beginners, Journaling, and Drawing - 24 Colors by Amber Perez

These markers are the best of both worlds. On one end you have a nylon fiber brush tip for shading and coloring and on the other end you have a fine 0.4mm tip for details, edges and fine lines. You can use the flexible tip of the brush as a brush for quick coloring or blending, and there is also a colorless blending pen that can be used to create a watercolor effect or just blend colors. Each marker is color coded. Cover to find the right color quickly and easily. The caps close tightly to prevent drying out. There are 24 markers in total, each double-sided. They are great for coloring, drawing, decorating and various other purposes. I've used them many times with no problems. They dry quickly and don't smear and I would buy them again.