[12 Pack] Boshi Gel Ink Pens Black Ink, Gel Ink Ball Point Pen This black gel ink pen writing are smooth, leak-free, no skips or smudge. Holy white color pen with metal pocket clip formed a unique design ball pen. The cap of the pen is tight enough not to fall off when you carry it. The pens are refillable and can use longer than common pens. Suitable for you to draw, mark, writing and so on.