Rosegold trim and a rosegold-plated steel nib (The fountain pen has more RoseGold parts than a normal ECO RoseGold). The ECO-T has a slightly more pronounced grip section than the ECO, which will help with learning the correct writing posture for kids and anyone who likes a little bit more structure to the grip area. The cap and barrel top also have a rotary triangular shape design. This fountain pen features a piston mechanism and a clear barrel. Simply unscrew the barrel top, dip the nib into ink, screw back the barrel top, and your done! Ready to write!