FeaturesBic 4 Colours Retractable Ballpoint Pen4 colour writing in a single penPerfect for recording data in different coloursSmooth sliders for easy colour changingPack of 12With four colours in one pen, the Bic 4 Colours Retractable Ballpoint Pen (Pack of 12) is a versatile choice for teachers, editors and other users. It features four smooth sliders at the top of the barrel for easy selection between black, blue, red and green ink. The chunky blue barrel provides a firm grip for comfort and control. This medium format pen features a 1mm tip for a line width of 0.4mm, ideal for general handwriting use.