These pen gift boxes are made of high-quality cardboard material, reliable and sturdy, not easy to wear and tear; the clear window design allows you to see what's inside. Each pen case measures approximately 17.5 x 4.3 x 2 cm/6.89 x 1.69 x 0.79 inches, suitable for holding most pens, ballpoint pens, jewelry, etc., easy to store without taking up too much space. Elegant and delicate: In black color, the ink pen display box looks simple and elegant, with a clear display window, making your gift more exquisite, perfect for storing pens, necklaces, bracelets, keychains, and other keepsakes. Wide range of uses: The pen gift box is suitable for baby showers, birthdays, anniversary awards, weddings, class rewards, business gifts, anniversary celebrations, trade shows, festivals, and other occasions. Color: Black. Material: Paper. Size: Approximately 17.5x4.3x2cm. Package contents: 16 x Pen boxes. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.