Features: Construction and material: Crafted with a combination of plastic and bamboo materials, the office pen is long lasting. The bamboo shell gives it an attractive appearance, while the plastic nib ensures smooth writing. This combination makes it a practical and versatile choice for school season or daily use. Thoughtful gift option: With 80 bamboo ballpoint pens included in the package, this set is ideal for gifting to friends, family members, teachers, or colleagues. Its versatility makes it suitable for both children and adults, whether for use in school or office. The wide range of colors allows for creative expression, but please be aware that they all have same black ink. Specifications: Material: plastic and bamboo Color: black, purple, green, pink, yellow, blue, red, orange Pen shell: about 5.51 inches/ 14 cm Pen nib: 1 mm Package includes: 80 x Bamboo pen Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.