Description
The high quality stainless steel pressurised ink cartridge is designed to perform at a temperature range of -20°C to +5°C, features a 1mm ball point nib and has an average write out length of 8000 metres
The pressurised ink cartridge means it can write continuously upside down, where other pens would fail.
It can write underwater, on greasy surfaces, in freezing conditions and even in space.