I purchased this about 35 years ago when I went to China. I'm not sure of the exact materials. I remember buying it for 2,300 yen each at the time. The ink doesn't come out, so I think it can be used if you replace the cartridge. 【Luxurious Design】 This ballpoint pen is made of gold-colored metal and is decorated, giving it an elegant impression. 【With Case】 A beautiful case is included, making it convenient for carrying and storage. It will securely protect your precious ballpoint pen. - Color: Gold - Material: Metal - Design: Decorated - Accessories: With case Thank you for viewing. Please consider this item, as it has been stored at home and is an old item. No returns or exchanges No price negotiations Thank you for viewing.