Pressurized ball pen refill

The pressurized ball pen refill had been solved the problem which was invented by Mr. Paul C. Fisher and was used in the outter space after 1968. The technical structure is an ultra-hard Tungesten carbide ball on the tip for extrmely durable writing smoothly on any surface which is supported by a precision-machined stainless steel socket to prevents leaks and oozing with delivering instant ink flow. The Thixotropic ink is applied in a hermetically sealed and pressurized reservoir writes three times longer which is sliding float separated ink from pressurized Nitrogen gas and the tube is securely sealed at end by a gas plug. it writes smoothly and dependably on most surfaces, even under water, over fingerprints, in freezing cold, extreme heat and in space or upside down. Ink will not dry out for over 100 years