Unit Insertable One-Touch Armband

Special function armband without safety pin. There is no hole in the clothes because no safety pin is used .. Since the display part can be replaced, you can also insert paper with original characters produced on a personal computer. The printing surface such as output paper is made of a material that is difficult to attach to vinyl. If you hit the arm with the repulsive force of a special steel spring, it will wrap around and be fixed with Velcro, making it difficult to shift without using a safety pin.