From "Uni Jetstream Edge" Series, New "Jetstream Edge 0.38" with an ultra-fine ball diameter of 0.38 mm has appeared! "Jetstream Edge 0.38" is equipped with a 0.38mm ultra-fine ball diameter refill that allows you to write characters even more stably while taking advantage of the shaft shape of the existing product "Jetstream Edge". We have a lineup of 4 shaft colors, including standard colors and bright colors, and you can choose according to your preference.