Rite in the Rain Metal Readiness Pen. Permanent ink writes through water, sweat, grease, and mud without clumping or smearing. Smooth and satisfying bolt action mechanism provides a unique experience. The hardened, chisel steel point can be used to shatter glass at a moments notice. Tactical textured grip Bolt-action clicker Glass-breaking tip 1.5 mm wire steel clip Lanyard loop Refills available Not allowed in carry-on luggage Technical Features Barrel Color: Flat Black Point Size: 0.9 mm Cartridge: Pressurized, performs in temperatures from -34C (-30F) to 121°C (250F), under water (down to 10,6 m / 35 ft) Weight 73 g (.16 lbs) Dimensions Lenght: 14,2 cm (5.6") Diameter: 11 mm (.44") Materials Barrel: Aluminium Tip and clip: Steel