The swivelling cartridge, 180?? rotation, can be rotated up to tens of thousands of times. Metal neutral pen, new attention, jumping on the paper, let writing silkier smooth. Metal pen body, long life, metal texture, tungsten carbide beads, smooth writing, strong and durable, not easy to stain. Low gravity frosted texture, feel comfortable, writing is not tired, shows the business atmosphere. Fine frosted metal, pen clip elasticity, portable insertion into the notebook. Adopting traditional casting technology, after 35 procedures, closely polished and made.