The delta we emotion (models and patented) writing instruments are made of special resin that is turned by hand from solid bar, and is added with precious and noble metals, like the natural coral. The we emotion range is available in ball/roller and fountain. The central metal has precious rhodium finish, and play through an incision in an era decor greek -roman style that are used for old paintings from pompeii. The barrel and cap is made in black resin and is turned by hand. The small external sphere is made of same color as the pen.