Ink: The ink on the Juice Up flows smoothly and even. The Juice Up boasts excellent waterproof and fade resistance thanks to its water-based pigment ink. The Juice Up's special "synergy tip" combines the longevity of a conical point with the accuracy of a needle. Body: The Juice Up has a brand-new, streamlined body. The section with a comfortable grip and the colorful indicator in the top push button that shows you whether the tip is extended or retracted at a glance are noteworthy features. Because of its low center of gravity, the pen is comfortable and easy to control.