This Sharpie Marker has a fine nib, for precise, detailed, permanent writing on a variety of surfaces. The permanent ink is abrasion, UV ray and water-resistant, for long lasting clarity. This is a single marker with a black line width of 0.9mm.Classic Sharpie permanent markerWrites on glass, plastic, fabric and paperQuick drying ink: resists smearingAP certified non-toxic formulaFine tip for a 0.9mm line widthSecure cap to prevent ink from drying upBarrel colour: GreyInk colour: BlackSingle Pen