In memory of the inventor of PTR rollers, the late John Pytlak of Kodak, I now call these Pytlak PTRs or Pytlak Transfer Rollers -- PPTR or PTR, your choice. FPC makes 1.5" rollers, now sold directly through Kodak. Also SanLab systems sells 1.5" rollers. Not too many other sources. Jeff "prefers 3" ones" Kreines