Description The Faber-Castell Ambition ballpoint in OpArt Mint Green features a barrel made of light green colored resin with a fine guilloche engraving, which is accented by the highly polished chrome-plated cap. The spring-loaded clip secures the pen in your pocket or pen case, and the twist-action mechanism extends and retracts the ballpoint refill.The slimmer barrel is comfortable in the hand for long writing sessions.