Package Content UNI-BALL 0.5mm roller ball pen black Features:waterproofsmooth writestainless steel tip0.5 mm Fine point Gel roller of Liquid ink with system of flow controlled that assures uniform writing, dries rapidly.Exceptional QualityA Barrel Window allows the User to see how much Ink is leftComfort grip for Fatigue-Free Writing UNI-BALL 0.5mm roller ball pen black