ARTISTRO 2 ブラック＆ホワイト 永久マーカー - タイヤ、布、岩、ガラス、陶器、木、紙用防水マーカー - 油性ペイントペン - 中字3mm

The medium tip glides over a rock I found without dragging or skipping, and the black dried to a nice matte finish. I've used it on fabric and glass too, and the ink holds up to water without smearing. Wrote on a ceramic mug and it hasn't budged after a week of washing.

I grabbed these for labeling glass jars and old plant pots, and the white ink shows up perfectly without any smudging once it dries. The 3mm tip is just right for bold, clean lines, and the flow stayed consistent the whole time without flooding.

The medium tip glides over ceramic like butter and leaves a crisp, permanent line that didn't budge after a soak in the sink. I've used it on a glass jar and a wooden sign so far, and the black is properly opaque on both.