Here is the latest offering from Stork. A mouthpiece designed for Froydis Ree Wekre. It has a semi flat medium rim (.125" or 3.20mm width) with a bite to it. The cup is medium deep with either a #9 or #10 throat/backbore. The diameter across the cup is .678" or 17.25mm. Gold plating usually adds 10 days to delivery time.