The universal pen for overhead projectors and almost all surfaces - awarded the Long Life Design Award - DRY SAFE: The pen can be left open for days without drying out (ISO 554 approved) - Airplane-safe: an automatic pressure equalisation stops the pen leaking on aeroplanes - Superbly smear-proof and waterproof on almost all surfaces - Permanent, low-odour ink - Excellent colour brilliance - Stroke width 0.6 mm - Colour: red