High quality whiteboard markers available in a box of 12 and in a bright blue coloured ink thanks to the low odour high quality ink using these markers at school is enjoyable good erasability immediately and even after a few days these markers are perfect to write easily on whiteboards thanks to the large blocked chisel tip that wont bend or retract under pressure whiteboard pens made from 51 recycled material excluding ink system help you to present information with one less worry