Pilot "Hi-Tec C Coleto" series allows you to customize your own multi pen with varies pen body's colors, ink colors and tip sizes. Other components such as the Coleto barrels are available separately - These Coleto pen refills are needle tip as Pilot Hi-Tec C pen - Total 10 colors : Black ,Red,Blue,Green,Violet ,Pink , Orange , Clear Blue , Brown and Blue Black .