ARTISTRO 紅色永久性記號筆 - 2支裝紅漆筆，油性油漆筆極細尖0.7mm，防水快乾紅色記號筆，適用於岩石繪畫、陶瓷、玻璃、木材、輪胎、布料等

The 0.7mm tip is perfect for fine lines on ceramic mugs without any bleeding, and it's held up well through a dishwasher cycle. These write so smoothly on glass and wood that I've already gone through half the first marker on my project.

The Italian ink in these flows really evenly—no skips or blobs even on the rough ceramic mug I tested. They dry fast enough that I didn’t smudge a single stroke, and the 0.7mm tip holds a crisp line for detailed work. I’ve already used one for a full rock-painting session and it hasn’t dried out yet

I’ve used these on ceramic mugs and they glide on like butter, and the red stays vivid even after I accidentally ran one under water. The ink dries fast enough that I didn’t smudge a single line, and the fine tip gives me precise control for tiny details.