0.5mm Color Ink Rollerball Pen Straight Liquid Gel Pens0. 5mm Color Ink Rollerball Pen Blue Orange Straight Liquid Gel Pens School Office Roller Ball Point Pen Cute Stationery Supplies Use: Office & School Pen Name: Colored Transparent Rollerball Pens Model Number: AK1254 Gel Pen's Ink Type: Gel Ink Type: Gel Pen Erasable Or Not: No Writing Point: 0. 5mm Material: Plastic +INK Length Of Pen: 14. 1CM Writing Point: 0. 5mm