- Efficient Waterproof Ink Solution: Harnessing high-performance ink technology, this marker ensures excellent durability in tough conditions. Its waterproof, quick-drying formula prevents smudging and forms a protective layer on wet surfaces in seconds. - Advanced NIB Technology: Designed for efficiency, the fiber nib marker features a unique blend of elasticity and hardness for a consistent ink flow, making it ideal for precise and effective marking. - Sustainable Solution: This marker reduces consumption waste with a refillable ink reservoir system, promoting long-term use and reusability. It can be refilled over 50 times, minimizing material disposal concerns while accommodating frequent use. - Versatile Application: Perfect for large-scale wall painting, this marker meets industrial marking needs with ease. Its adaptability makes it suitable for various professional applications, including construction site markings, graffiti artwork, and outdoor signage. Use Cases: 1. Marking construction sites or hazardous areas clearly and durably even in wet weather. 2. Creating large murals and artistic projects that require reliable ink performance on diverse surfaces. 3. Labeling pipes, machinery, or tools in industrial settings where waterproof and sturdy markings are essential.