Pica Dry Longlife Automatic Pencil - The only Construction Marker with effective dust and moisture protection "LONGLIFE CAP"  with extra strong clip and robust sharpener for long term use Extremely sustainable thanks to refillability Wipe clean from glossy surfaces with a damp cloth Barrel with roll stop Convenient quiver cap with special clip for perfect one handed handling Patented: The integrated sharpener in the quiver cap - always and immediately at hand High value push mechanism for automatic lead feed in a stainless steel tube Leads most easy to refill from the back end Water soluble "Multi-Use" leads 4030 For almost all surfaces, no matter if dry or wet, glossy or rough, dusty or oily, bright or dark Wipe clean from glossy surfaces with a damp cloth Leads are already sharpened In a convenient and sturdy plastic box Protect red & yellow from temperatures above 30°C Diameter: 2.8 mm, Length: 125 mm Sets of 10 leads: Graphite