Well-balance and durable, this everyday carry click pen will last you for years. Made from raw 6061-T6 machined Aluminum, C3604 Brass or 303 Stainless steel, these pens will withstand the test time. Along with very reliable Schmidt German engineered SKM-88 "click" mechanism, there is the tactical designed knurling, also featured on the pen tip , providing an easier grip and smoother writing.