Innovative ink system eliminates your cartridge concerns and efficient ink delivery system uses every drop for your smooth writing experience. Convenient clip makes this pen a fantastic grab and go option, attaching to your pocket, collar or briefcase pocket. Pre-loaded free-flowing liquid ink fountain pens provide smooth glide on paper. 0.6mm point size. 4 color set includes: Black, Blue, Pink & Purple. 7 color set includes: Black, Blue, Pink, Red, Green, Light Blue & Purple.