PK-TPE-BK Tactical Pen & Writing Instrument ~ EDC Executive Essential Aerospace Aluminum 7075 Series / CNC Mill Machined - Length: 5.75 inches Weight: 1.6 Ounces Surface Treatment Electro Polished and Nano-PVD Coated / CAP Chrome Plated and ACME Screw Threaded Supplied with Fisher Pen Cartridge Medium Black #SPR4