Permanent universal pen is designed for use on overhead film and almost all surfaces. Dry-Safe pen can be left uncapped for days without drying up. Low-odor ink offers excellent smudgeproof and waterproof qualities on almost all surfaces. Write on overhead transparency film or such glossy surfaces as photos, transparency sleeves, slide frames, cromalins, glass, acrylic and vinyl. Ink dries in seconds. It is ideal for left-handed users. Pen has a polypropylene barrel and cap with a clip.