These Bic Velleda Whiteboard Markers feature ketone-based ink that 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 will not bend or retract into the barrel, even with heavy use. The bullet tip writes a consistent bold line for ease of use. Bullet nib whiteboard marker with chunky barrel Low-odour erasable ink Sturdy tip resists bending or retracting Acrylic bullet-shaped tip for 1.5mm line width Designed for drywipe whiteboards Ink colour: Red Pack of 12