Metal rollerball pens are practical writing instruments for any advertising campaign. Use these custom pens as an effective brand promotion marketing tool. They are unique in a sense that the ink is gel based and the sleek metallic body gives them a rich look. The tips are compact and measure 0.5 or 0.7 mm in diameter with a smooth flow of ink which makes the whole writing experience enjoyable. Printed or engraved rollerball pens with your company logo are must have promotional products for any corporate marketing.