SAKURA Identi-Pen Permanent Marker - Dual Tip (1.0mm / 0.4mm) - Colours - Set 8Another great pen from SAKURA built for heavy use for writing on almost any surface. Permanent and waterproof. Two ends one fine (1. 0mm) and the other extra fine (0. 4mm) Good for autographs. Marks most non porous surfaces, including plastic, slick PVC, poly propylene, metal, glass, wood, rubber, leather, cloth. Applications include tools, sporting goods, test tubes, photographs, CDs. Non xylene and low odour. AP non toxic. Can be removed from non