Features & Benefits
- All brass & steel construction with hard chrome plating
- Used on NASA Apollo/Shuttle missions, International Space Station, and Everest North Face Ski Expedition
- Pressurized thixotropic ink cartridges last 3x longer than ballpoint pens
- Hand-tested with a lifetime guarantee against manufacturing defects
- Operates in temperatures from -30F to +250F
- Suitable for use underwater and in zero gravity