Technical specifications: Pen type: Ballpoint Pen + Pencil Body material: High-quality aviation aluminum - lightweight, strong and durable Body color: Depending on the model (usually black, blue or titanium) Length: Extremely compact - ideal for everyday carrying Weight: Very easy to carry in a pocket, bag or EDC kit Mechanism: Smooth rotation to open the pen and protect the writing head Refill: Replaceable (standard gel/Olight Mini balls)