The Esterbrook Estie ball pen in Ebony with Palladium trim is made of deep black acrylic resin with a solid Palladium clip. The clip has been specially engineered to easily slide in or out of a shirt pocket without assistance while still maintaining a firm grip. There is Smooth twist action to advance and retract the tip. The Estie ballpoint pen is a staple in anyones pen collection, as it is one of the worlds most popular writing instruments combined with a gleaming, glossy black resin finish with palladium detailing. The design and functionality of this pen radiates luxury and enjoyment.