Perfect for those who already have a style fit body! You can customize it as you like with this set of 10. Make your pen. The diameter of this ballpoint pen is 0.38mm. We also offer 0.01 inch (0.28 mm) and 0.02 inch (0.5 For replacement! There are many sets of parts and refills for you to choose from. Jetstream Sharp leads are also available for a style fit that is easy to write on. After you place your order, you can enter your contact from your order history in your email through Amazon. Please contact us as soon as possible. If you are unsure about it, you can also reply this email to "inquire a seller" on our page. Available in Black, Blue, Black, Blue, Light Blue, Sky Blue, Green, Lime Green, Golden Yellow, Orange, Mandarin Orange, Red, Rose Pink, Baby Pink, Violet, and Brown Black.