Enhance your fabric projects with the Tulip glow-in-the-dark fabric marker, designed for precise and vivid application on both light and dark surfaces. Crafted with premium-quality ink, this glow-in-the-dark ink offers a durable finish that resists fading, even after multiple machine washes, ensuring your artwork remains vibrant over time. The included bullet tip allows for detailed drawing, doodling, and writing on a variety of DIY surfaces such as clothing, shoes, backpacks, and canvas, making it versatile for many uses with no heat setting required! This glow-in-the-dark ink provides a perfect solution for adding luminous accents to your fabric crafts, creating eye-catching designs that glow in the dark. Whether you're working on intricate designs or bold statements, the glow-in-dark markers are ideal for creating illumination effects that stand out, making your projects truly unique. Its permanent, washable ink ensures your glow-in-the-dark art will stay bright and beautiful after every wash and wear. Shake the pen vigorously until you hear the mixing ball to get the ink flowing. Includes bonus replacement tip and sponge. To activate, expose glow ink to UV light source – such as an outdoor or black light for at least one minute.