The OEM Lumocolor Fibre-Tip Porous Point Pen is a permanent universal pen designed for use on overhead film and almost all surfaces. It features Dry-Safe ink that can be left uncapped for days without drying up, making it ideal for left-handed users. The low-odor ink offers excellent smudgeproof and waterproof qualities, drying in seconds. The pen has a durable polypropylene barrel and cap with a clip, and it is easy to refill.