5 American Edelstaal Inc E25 collets with mounting nut. These Swiss collets were made by either Schaublin or Rego Fix (my bet is Schaublin). Sizes included are: 1/16, 3/32, 3/16, 1/4, and 3/8. With original boxes. The mounting nut has no maker’s mark that I can find. The nut will fit on, to my knowledge, any threaded ER-25 style holder out there. Take a good look at the pics and contact me with any questions. Thanks for looking!