The Winsor & Newton Designers Promarker Apple is a professional-grade marker that is perfect for any artist or designer. This marker features a dual-ended design, with a fine tip on one end and a broad chisel tip on the other. The alcohol-based ink is highly pigmented and lightfast, ensuring that your artwork will remain vibrant and true to color for years to come. The ink is also non-toxic and odorless, making it safe to use in any environment. The marker is also refillable, so you can keep using it for years to come.The Designers Promarker is ideal for a variety of applications, including illustration, graphic design, and calligraphy. It is also great for coloring, blending, and shading. The marker is easy to use and provides a smooth, even application. It is also great for use on a variety of surfaces, including paper, cardstock, and canvas.The Winsor & Newton Designers Promarker Apple is a great choice for any artist or designer looking for a professional-grade marker. With its dual-ended design, lightfast ink, and refillable design, this marker is sure to provide years of reliable use.