The Molotow ONE4ALL 4 mm Marker in Ultramarine is a highly opaque acrylic marker designed for precise and even application across a wide range of surfaces. Its deep, intense ultramarine tone brings a strong artistic dimension, ideal for bold contrasts, rich shading, or expressive compositions. Formulated with water-based acrylic paint, it delivers excellent coverage and fast drying performance. Its semi-gloss finish provides a clean and luminous look, while UV resistance helps maintain colour intensity over time, both indoors and outdoors. Highly versatile, it adheres reliably to many surfaces including canvas, wood, metal, plastic, and textiles. It is also well suited for customising objects such as sneakers, accessories, and various creative surfaces, offering strong flexibility in use. The ONE4ALL system is built around a durable refillable design. The paint can be diluted with water or acetone depending on the desired effect, allowing control over flow and application. Non-toxic and reliable, this marker integrates easily into regular creative practice.