This addition has the sleek, smooth, and refined lines of the Wall Street series pens plus a new non rotating click mechanism for smooth and consistent operation. The nib/nib holder, center ring and the click mechanism/clip are pre-assembled. Simply turn the one tube body, press in the threaded ring for the nib assembly, press in the click mechanism/clip assembly, screw on the nib assembly and the pen is finished! Available in HRD-20® long wearing gold and true Platinum finishes. Requires Wall Street II bushings (146597).