TWSBI ECO-T Rosso Fountain PenAt first glance, the ECO T appears to be an exact copy of the ECO: both are equipped with the same nib and their bodies are made of resin. However, the ECO T stands out for its triangular rounded grip, which allows beginners to better handle the pen. Like the ECO, it is equipped with a piston filling mechanism, allowing it to contain ink directly in its transparent barrel. Say goodbye to disposable cartridges and converters! Its cap, also triangular