Refillable Product Through Cartridge. It Is An Be-Green (Eco-Friendly) Product Made From 71% Recycled Plastic. Unique 3-Dimple Tip Technology From Japan For Precision Writing. Pure Liquid Ink For Smooth <> Writing. Patented <> To Ensure Instant Start Every Time. See Through << Ink Reservoir>> Which Indicates Remaining Ink Level. Non Toxic Ink Fine Tip Of .7 Mm Which Delivers .4Mm Width Of Stroke.