Presenting the highest quality pencil Castell® Color, with thick graphite, suitable for writing, marking and painting.
The body's cover is from an eco-friendly water-based paint . . . . . . . . . . .of Faber-Castel worldwide.
Non-breakability of graphite protected by SV system of connection of graphite to wood.
He's doing great on rough surfaces.
With two-color graphite: red and blue. 
On request