The transparent pen body presents a technological style, which adds a sense of futuristic to the Japanese 100-year-old brand Platinum. The Double Re Action multifunction pen features a 0.7 mm black and red refill and a 0.5 mm mechanical pencil function, simply turn the pen body to switch between three different functions. In order to allow the pen to smoothly switch colors, a little lubricant is added to the upper part of the pen. The transparent pen body allows the user to easily distinguish the refilled pen. This pen also contains an eraser that most multifunction pens do not have.