The delta galassia resin case red rings ballpoint pen has a black resin barrel inlaid with red rings. This pen accepts standard refill type and can also use delta capless rollerball refill. Each piece has individually numbered titanium trim and articulated rhodium plated alloy clip. The diameter of the pen is 13mm.It's a made in italy product.It is a premium quality product this pen is a perfect gifting option because it is one of it's best kind in the given price range.