The Edding 5400 3D Double Liner features two different-sized tips and a unique tube-like barrel, allowing for the application of varying amounts of acrylic paste. It is versatile enough to be used in conjunction with a brush, making it ideal for a wide range of creative projects. This marker is perfect for painting and decorating on surfaces such as canvas, paper, and wood. It contains highly pigmented, water-based ink that becomes permanent once dry. The ink is also lightfast, quick-drying, waterproof, and has a low odor. The nozzles are designed to deliver lines of 2-3mm and 5-10mm thickness. To use, simply remove the cap and gently squeeze the body of the marker until the paint begins to flow. For best results, store the marker at room temperature.