Stabilo OHPen Permanent Superfine Set of 4

Stabilo OHPen Permanent Superfine Set of 4 -  A multi-use pen for both school and manufacturers, this OHPen doubles as a permanent marker, as it writes on almost all smooth surfaces. It is a favorite of the autograph industry, and also quite popular with aerospace uses (non-corrosive to aluminum and other materials). 

• Color: Black / Blue / Red / Green
• Size: 0.4 mm (superfine)
• Permanent
• Non-slip grip
• Ventilated cap with clip