Create a brushstroke effect with Holbein Meltz Colored Pencil Blender! Having trouble achieving soft, realistic gradients? Simply glide the solvent over your oil-based colored pencil illustrations and blend colors at ease. The blender consists of a water-based formula that dissolves all colors. For best color mixing results, apply in layers or in a cross-hatching style. Choose between the 35ml bottle for larger sections or the pen for finer detail.