Review on 🖌️ 21 Black & White Acrylic Paint Markers - Extra Fine 0.7mm & Medium 3.0mm Tips for Rock Painting, Canvas, Mugs, Metal, Glass, Fabric, Wood. DIY Crafts with Non-Toxic, Quick-Dry & Water-Based Ink by Lori Aguirre

I bought these on the recommendation of someone in the alcohol ink community. I think they are a poor substitute for Posca drawing pens. First, they're a lot less opaque than Posca pens, not what you want when you're painting with alcohol ink. Second, they appear to respond to AI by washing color out of the white acrylic ink. You must seal your artwork before using it. I also bought a set of Artooli metal markers and am having the same issues with markers being opaque or missing. I'd rather spend a little more on Posca pens and get the results I want than go cheap and ruin my work with those pens.