QoR (pronounced core) watercolors feature Aquazol, an advanced water-soluble binder that allows for greater pigment loading than traditional watercolor binders, resulting in vivid depth of color in every brushstroke while retaining versatility and flow. Seasoned watercolorists and beginners alike will love the intense color palette, smooth transitions and glazing qualities. Details: Available in multiple colors 11 mL tube Semi-transparent Exceptional adhesion properties