Features: The self-defenses tactic pen is made of quality material, and which can be your self-defenses tool. The ballpoint pen provide nice writing tools with high performances and bodyguards for emergencies. Can be used as broken glass apparatuses for quickly escaping when driving in an emergencies. According with ergonomic design, and easy to hook on your backpack, bags, and also notebook. Stainless steel material made tactic pen tip, aluminum alloy pen body, durable and practical. Specifications: Material: Aluminum Alloy+Stainless Steel Color: Black/Gray Package Weight: approx.30g Length: approx.14cm/5.51in Diameter: approx.12mm/0.47in (More Size Detail, Please See Photo.) Note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Thanks! Package includes: 1Pc x Ballpoint Pen