Pelikan Flash Marker 442 Whiteboard Markers, 4 per Pack, Assorted Colors (30280400) 4 vivid colors: Black, Dark Green, Dark Blue and Red feature a chisel tip for fine, medium and broad widths Chisel tip for fine, medium and broad widths Easy to erase and does not stain whiteboard Airtight, ventilated cap prevents drying; 48 hour "Cap-Off" time Non-toxic and conforms to ASTM D 4236