If I am not mistaken, there are 10 different manufactures in China that make the Penstyle and although the look may be slightly different (shinny v. matte finish), and of course quality control (remember China is now what Japan was back in the 1960's)all penstyles are pretty much the sameAgain the atomizer is the key with 4 holes being much better then 2hope that helps. One other point is cost. You can
buy the same penstyle from one vendor and pay up to 149.00 dollars or get the same on for a lot less ($49.99) at other websites so check around.