STAEDTLER 318 WP8 Lumocolor Permanent Pen, Fine Line Width, 0.6mm Assorted Colours (Pack of 8)

Amazon

Universal permanent pen for use on almost all surfaces Excellent smudge-proof and waterproof qualities on almost all surfaces Dries in seconds, therefore ideal for left-handed users DRY SAFE - can be left uncapped for days without drying up Line width F - fine, approx. 0.6mm

Euroffice

Pen for overhead projector film and other glossy surfaces. Permanent ink for lasting use. Dry-Safe ink for up to 2 days cap-off time. Fast drying ink prevents smudges. Works on CDs, glass, plastic, metal, porcelain, wood, leather and OHP film.