These molds castone upper and one lower tube for the following pen kit:
PSI Vertex Supreme Rollerball or Fountain Pen Kit w/ magnetic cap
Most tube-in series are universal in nature, if the tube length is close and bushings are the same size or smaller, then the tube-in blank should cast properly. Please visitIAP Kit Bushing and Tube Referencefor various pen kit dimensions.
Initial set of stoppers are included with a mold purchase. CLICK HEREto buy replacements.