Box contains 6 markers with 3 nibs and shades on each, with a total of 18 color shades to blend. With its unique 3-in-1 design, Spectrum Noir’s new TriBlend Marker is a true break-through innovation for colorists. Inside each marker, there are three separate ink chambers, each feeding through to a fine-bullet nib, so you can experience three colors inside a single alcohol marker for the first time. When used together, these colors will combine to give you a seamless, controlled blend each and every time. With no guess-work or waiting for the correct shade to appear. With TriBlend you know exactly what you’re going to get - 3 beautiful, related shades that will always blend wonderfully and that you can return to time and time again.