The Staedtler Lumocolor Non-Permanent Markers 311WP4 are a set of 4 markers in super fine 0.4mm tip size. Made in Germany by the renowned brand Staedtler, these markers are designed for precise and detailed writing or drawing tasks. The non-permanent feature ensures that the ink easily blends or erases, making them ideal for temporary use or overwriting. The lumocolor technology provides vivid and long-lasting color, making these markers a versatile and high-quality choice for various office and creative projects.