The Zebra bLen retractable gel pen provides an innovative vibration-free writing experience. It is designed with a gap-free internal system to reduce noise and a brass weight at the tip to lower the center of gravity. These characteristics remove uncomfortable writing vibration and make the pen more stable and easier to control. Created in collaboration with Nendo, a Japanese design studio, the bLen gel pen is not only sleek in appearance but puts an end to stressful writing.