Dr. A. Hill Hybrid 4000 The Tekna 4000 is incredibly easy to use. Learning how to use it took no effort at all. Very nice! By teknamfg|2018-01-19T16:06:29+00:00December 7th, 2017|Comments Off on Dr. A. Hill Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail About the Author: teknamfg