Dip pens can be used with almost any paint or ink as long as it is thinned to the proper consistency. These inks from Winsor & Newton, Kohinoor, Pelikan, Higgings and Daler-Rowney FW, are made to be used right out of the bottle. Most feature a dropper top for easy filling. Also great for general drawing and sketching with brush, airbrush and technical pen.