This entry model is an easy-to-buy item for those who are using Copic for the first time.With similar performance and color quality as the Copic Sketch series, the Copic Ciao series comes in 180 color variations that also includes a colorless blender.Can be refilled with Various Ink (ink refill), sold separately. The tips can also be exchanged.-Please use Copic Sketch series nibs as the replacement tips.--