Yasutomo Pen Permawriter, Black, 07 LargeVersatile Pen: This Yasutomo Pen Permawriter is a versatile pen that can be used on a variety of surfaces including ceramic, fabric, glass, metal, and plastic. Bold Black Ink: The pen features bold and rich black ink that stands out on any surface, making it perfect for writing or drawing with precision. Large 07 Tip: With a large 07 tip, this pen provides a smooth and comfortable writing experience, ideal for those who prefer a larger pen tip.