6mm w. silver plated ribbon. Internal roller similar to E. F. Johnson 222 series. . Motor drive/manual drive. Write for details. - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com