These Teachables Mini Whiteboard Markers come in a pack of 100. Included are 40 black, 20 blue, 20 red and 20 green mini markers with vibrant whiteboard ink, which is easily erased. Each marker is 9.5cm in length, making it ideal for mini hands. The nib is bullet tipped and the line width is 1-2mm. This class pack is suitable for schools and offices