Sakura Identi-Pen

Sakura Identi-Pens are dual-point permanent ink marking pens that give you a fine-point fiber tip on one end and an extra fine plastic tip on the other. Use on fabric, metal, glass, ceramics, rubber; virtually any surface. The ink is fade-proof and waterproof. It is permanent on most surfaces, but can be removed from solid, non-porous surfaces with turpentine or other thinners.