Very good rolls in original quality. Unfortunately 10mm pin strength were my part not measured correctly (incl. Retaining ring?). Before I got involved in the solution of tape around the metal pin, and I was able to pull out all the means of pliers and put the old Stiffte appropriate pin in the new roles. Goes very well with little force. Many thanks to the other reviewers for this tip. Tip: do not make plastic with any oil smoothly, otherwise there is a danger that the plastic swells and is still sluggish. Plastics should be better made smooth with silicone spray silicone grease.
