Not only provide you with a high-performance writing instruments and stunning experience, the critical moment is your bodyguard. Strong defensive attack head (Diamond) can be self-defense, change as glass-breakers, a case of an emergency while driving. Manganese pen clip: ergonomic design, easy to wear hanging backpack, bag, notebook, with military regulations aerospace aluminum material, moderate stretch, not falling. Is also a smooth business pen nib sleek lines of the design, just the comfort and stability. Aviation aluminum material made, durable and practical.