New Body Colors have appeared to Uni Jet Stream Prime Rotary Feeding System Single Ballpoint Pen. ■ While maintaining the luxury of the "Jet Stream Prime" series, the shaft body has a graceful impression that gently narrows toward the tip, pursuing an elegant shape unique to the rotary feeding type. ■ We give appropriate weight to the extension movement of the pen tip and express the high-quality operation feeling required for the rotary extension type single. ■ You can write smoothly with low writing resistance regardless of writing load and speed. ■ You can express dark and clear lines. ■ Excellent quick-drying of drawn lines. We have a lineup of 5 colors with a high-quality paint finish on a smooth silhouette that expresses smoothness, which is common to the "Stream Prime Series".