FeaturesQuick-drying, smooth flowing EnerGel ink is perfect for right or left-handed writersReduces smudging on hands and paperGrooved latex-free finger grip for extra comfort0.7mm tip gives approx. a 0.35mm (medium) line widthRefillableThe Pentel EnerGel Plus Rollerball Pen (Box of 12) offers smooth writing and liquid gel ink. Quick-drying ink is ideal for left-handed users. Lasts longer than ordinary gel compared to standard gel ink pens. Grooved rubber finger grip. 0.7mm tip gives an 0.35mm line width.