[Efficient Transparent Design]: Easily monitor ink levels thanks to the clear pen tube. Each marker includes an internal steel ball for consistent ink mixing and smoother application, enhancing your painting or writing experience. [User-Friendly]: Filling these markers is a breeze - simply remove the tip, add your choice of paint or ink, and reattach to begin your artistic endeavors. Designed for simplicity, these pens are perfect for both beginners and seasoned artists. [Ample Supply]: Our set includes six dual-ended markers, providing a versatile range of uses. With different materials on each end, these pens are adequate for all your creative projects, ensuring you always have the right tool at hand. [Versatile Applications]: Ideal for filling with various artistic mediums including acrylics, oil paints, watercolors, and more. These markers offer endless possibilities to expand your creativity and enhance your art projects. [High-Quality Materials]: Crafted from durable PP, each pen in this 6-pack features a robust construction resistant to breaking and deforming. The point is made from a resilient polyester and acrylic combination, ensuring reliability and long-term use. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Transparent-White Material:Plastic Size:3mm Package Contents: 6 * empty paint pen