Experience a seamless and reliable bolt-action mechanism that ensures a gratifying writing session. Our pens feature a unique ink and delivery system, exclusive to Rite in the Rain, allowing them to effortlessly write through water, sweat, grease, and mud. With a pressurized ink cartridge, our pens excel in extreme temperatures ranging from -34°C to 121°C (-30°F to 250°F), underwater up to approx. 10.67 m (35 feet) deep, and at any angle. Weight 31 g (.068 lbs) Dimensions Length: 14 cm (5.64 in) Diameter: 1 cm (.43 in) Point Size: 9 mm Materials Barrel: Metal Clip: Stainless steel