Smooth-Flow Tip: Features a 3.5mm tip for smooth, controlled ink flow, perfect for creating intricate designs on various fabrics. Easy Heat Transfer: Draw your design on paper, then transfer to fabric, clothing, or other surfaces using high-temperature ironing (356°F / 180°C). Kid-Safe & Non-Toxic: Non-toxic, fade-resistant, and light-fast markers meet ASTM & EN71 certifications. Safe for children aged 3+ and family craft projects. Versatile Crafting: Ideal for transferring designs onto fabric, mugs, glass, handbags, and more. Note: final image appears reversed after transfer. Colors: Blue color, with cap color matching the sublimation color for accurate results every time.