The Sailor G-Free makes writing as stress-free as floating in zero-gravity. A spring cushions the tip of the pen, comfortably absorbing any excess writing pressure. Twisting the top push button adjusts the resistance of the spring. The pen also features a comfortable, ergonomically-shaped rubber grip section and a specially formulated ink that minimizes skips and globs. It has a convenient binder clip that retracts the tip when pushed, so you'll never accidentally get ink in your pocket by putting the pen away with the tip extended.
Sailor used electromyograms to compare the muscle strength exerted when writing with a typical ballpoint pen versus the G-Free. They found that with the G-Free, people were able to write using over 10% less strength!
This pen contains 0.7 mm black G-Free ink.
This is is the Green (Jupiter) pen. Close-up photos showing the tip mechanism feature the Orange (Saturn) pen.