It's stone ball pen also with metal material. It's light and colorful. 1 pc/opp bag, 50pcs/inner box, 500pcs/ctn. MOQ is 5000pcs It is stone ball pen with half metal material. But it is not heavy, it is light and colorful. It suitable for home, school, office and gift, promotional. It is a kind of cap-off pen. Any interests, pls. contact us. ball pen