Dove Blender Pen BL-3. The Dove Blender contains a revolutionary new blending medium that is specially formulated to make floating or blending of colours easier. It enables one to blend several hues together so producing an extended range of colours . The Dove Blender works with all water based markers, watercolour pencils, watercolour paints, chalks, markers, dye and pigment ink pads. The blender never has to be replaced, it is easily refillable and the nibs are replaceable. But most important the Dove Blending Fluid will make your work Permanent when it is allowed to dry. Refill with Dove’s blending fluid (BL-R)711583686375 and replace tip with Dove’s blender tips (BL-TP5)711583686382.