Acurit Waterproof Technical Pens - Professional Waterproof Technical Pen, Rich Blank Ink, Acid-Free, Light Fast, for Sketching, Drawing, Calligraphy, & More! - [Single - 0.50mm]

I got these to use with my watercolor paints and I must say thatI am very impressed. These pens have been awesome, and I will definitely be ordering more once mine have been used up. The ink it very waterproof and thus works great for my use with watercolor paint, and having all the different tip sizes is great! I would highly recommend these and have to some of my friends. I really don’t have anything bad to say about these. Just all-around great pens!

These pens rival more expensive Rapidograph style tech pens in laying down a fine line for drawing etc.

Excellent, dark and fluid

Excellent. Love these pens for signing my Watercolor paintings

I love these pens! I can draw or write on top of watercolor or I can draw my design first and then watercolor over the ink and it stays put. An excellent purchase for artists!

I order these on a regular basis - they are waterproof , come in a variety of sizes and are wonderful for mixed media.I use them often with the Derwent inktense pencils and paints. I can do a wash right over without smearing.

my granddaughter loved it but I could not get the next size up which she also wanted.

Easy flow! Well shipped great product and vendor