BIC VELLEDA WHITEBOARD MARKER PENS / CHISEL TIP / BLACK / 12 PACK / 1199175109 The ketone-based ink glides on smoothly and erases just as easily, and is low odour to ensure comfort when writing extensively. It features a strong acrylic tip that won`t bend or retract into the barrel, even with heavy use. The chisel tip delivers a variable line thickness between 3. 7mm to 5. 5mm, perfect sketching diagrams or creating bold titles. Chisel nib whiteboard marker with chunky barrel Low odour erasable ink Sturdy tip resists bending or retracting Acrylic chisel-shaped tip for variable line width (3.7mm to 5.5mm) Designed for dry-wipe whiteboards Ink colour: Black Pack of 12 pens