| Features 6 different ball sizes0.3mm/0.4mm/0.5mm/0.7mm/1.0mm/1.5mm 10 Ink colors | Free ink Roller pen series CFR-155CSN 0.5CFR-157CSN 0.7CFR-151CSN 1.0 CFR-155NP 0.5CFR-157NP 0.7