Since they are all handcrafted, our pens are rarely the exact same size even in the same style of pen. A popular feature available on all versions of His & Hers Mid Size pens is the posting cap. The cap attaches to the threaded end of the pen with ease. All three styles are available in a fountain pen or roller ball version. <BR><BR> Pens are made from deer antlers or beautiful woods. Please check each pen for the specific features of the pen style.