The Winsor & Newton Designers Promarker in Cool Aqua is a versatile and vibrant marker perfect for any artist. This marker is double-ended, with a broad chisel nib on one end and a fine bullet nib on the other, allowing for a variety of line widths and styles. The ink is alcohol-based, giving it a smooth, blendable finish and allowing for a range of effects. The ink is also lightfast, meaning it won't fade over time. The marker is also refillable, so you can keep using it for years to come.The Designers Promarker is ideal for a variety of uses, from sketching and illustration to graphic design and colouring. It's perfect for adding subtle shading and highlights to your artwork, and the vibrant colour will make your work stand out. The marker is also great for adding a splash of colour to your craft projects.To use the marker, simply shake it to mix the ink, then press the nib onto the paper. You can use the broad chisel nib for larger areas and the fine bullet nib for more detailed work. To refill the marker, simply unscrew the cap and insert a new refill.The Winsor & Newton Designers Promarker in Cool Aqua is a great choice for any artist looking for a versatile and vibrant marker. With its double-ended nibs, lightfast ink, and refillable design, it's perfect for adding subtle shading and highlights to your artwork.