FIRST TIME USE: 1. Press: With the nib pointing up, press 2-3 times to expel air and prevent ink spillage. 2. Shake: Put the cap on the pen and gently shake it 2-3 times to even out the ink. 3. Press: Press the nib on the paper for 2-3 seconds until the ink overflows. Extra Fine Medium Tips for Every Detail: Switching between fine outlines and bold fills with our 0.7mm extra-fine and 2-3mm medium tips. Whether you're sketching delicate patterns on your scrapbook or adding chunky strokes to a DIY home decor project, Or for correcting, covering writing errors on paper and rewriting, our markers have got you covered. Consistent, Long-lasting Performance: Advanced valve-lock technology means no more dried-out markers or inconsistent flow. Generously filled with premium Italy ink, our markers promise sustained usability, allowing your creativity to flow uninterrupted. Artistry Without Limits: Our multi-surface markers work beautifully on glass, metal, ceramic, fabric, paper, and more. Presented in a stylish box, they make the ideal gift for artists, students, and DIY enthusiasts. Certified Eco-Conscious: Crafted with Italy eco-friendly ink, our markers are fully ASTM D-4236 certified, ensuring you a safe and non-toxic experience. Trust in the quality and sustainability behind every stroke of color you lay down. Quality Service: We always adhere to the principle of "customer first, service first". If you have any questions or need further assistance in the process of white markers use, please feel free to contact us. We will answer for you within 24 hours.