Olight O'Pen Mini Portable Ballpoint Pen

● Small and Concealed: Only 3.66 inches in length, it can be totally concealed in your shirt pocket. ● Strong and Stylish: The aluminum alloy body is tough and wear-resistant. It comes with finely machined hollow rifling grooves for a dynamic and stylish look. ● Smooth to Write: Customized refill with PREMEC stainless steel tip, only for writing and causing fewer inkblots. ● Bolt Action Design: Intuitively pop out or retract the tip when operating with your thumb. Fun to play with and a great design to prevent misfires. ● Convenient Pocket Clip: Just clip the pen securely to your notebook, pocket, or backpack strap when you are done writing.