Spectrum Noir Next Generation Blues Alcohol Markers 6-pack CRAFTER'S COMPANION-Spectrum Noir Marker Sets These alcohol based markers make a great addition to any craft room or design studio Each pen is double-ended with a broad chisel nib for large area fills and a fine bullet tip for detailed work The pens are refillable and the barrels are ergonomic and hexagonal shaped so they won't roll around your work area They also feature a unique, no slip rubberized grip for better control and a double-locking cap for extended time between refills