Hard to find elsewhere…great price and service!

The price and prompt delivery are excellent.

This is the best ink for Rapidograph tech pens if you're using them to draw with because it's slower drying than the regular Rapidograph "universal" ink which is good for drafting since it dries quickly and has less chance to smear and ruin a drafting type drawing. Also, Dew Drafting was one of the only places I could find the Ultradraw in the big bottle which is a fraction of the cost of what the same ink goes for in the smaller bottles.