I'm not a potential customer for these, but I thought I would let you in on a little secret: there are actually 50 states in the U.S. Now, I suspect you knew that, but what you may not know is shipping to Alaska (my state) and/or Hawaii is NOT considered "international" from any other U.S. state.
More importantly, the most likely way for you to ship these ferrules - USPS 1st Class Mail, or Flat-Rate box/envelope - is mandated by federal law to be the same price for all 50 states. What this means is, in the future, you can list your sale to ALL 50 states, not just the 48 ones connected to you by land (actually, Alaska is connected by land as well... but I digress).
Unless you've got something against residents in Alaska and Hawaii - in which case that's an entirely different problem.
TW