The Dove Blender Solution is a revolutionary blending medium, specially formulated to make "floating" or blending colors easier. Works great with all water base markers, colored pencils, chalks, dye ink pads and pigment ink pads. Use this solution to refill Dove's Blender Pens (not included) or straight from the bottle, with a brush, dropper or spray bottle. This package contains one 1 oz/29.5 ml bottle. Made in USA.