PILOT SCA-100 Fine Tip Permanent Marker Pen - Oil Based - Black/Blue/Red/Green Pilot Bullet Point Permanent Marker Pen Premium Oil Based Permanent Ink Suitable for use on a variety of surfaces including; Metal, Wood, Plastic, Card and Glass Vivid Ink with a 24 hour cap off time and high resistance to abrasion Fine Bullet Tip Writes a 4.0mm - 4.5mm Line