STABILO power is a super long lasting fibre tip pen. With its washable ink there is no need to worry if it ends up on hands or clothes and don't worry if you forget to replace the cap as the biggest benefit of STABILO power is the cap-off time of 8 weeks. The pen has a robust large tip with a line width of 2mm and a ventilated cap,  so it is the ideal solution for the heavy demands of any playroom, classroom or nursery.