For Hermle, Urgos, or Kieninger check with Black Forest Imports. I buy all my supplies from them and have bought several crutches from them. Timesavers or Ronells could have some also but BFI is a distributor for the above movements. The movement has a number on it such as 1050-053 or something of that sort. Call and give them that number and they can tell you if they have them at 1(714)637-4307 Tech help & Questions and 1(800)824-0900 Orders Only.