Thank you for viewing. Please read the profile. Thank you. B. Tilz Tilzhorn Mouthpiece McWilliam Model 1 European Shank Used item B. Tilz McWilliam 1 Silver plated finish Rim inner diameter: 17.5mm Bore size: 4.4mm Cup depth: Medium Deep Purchased new from a musical instrument store in November 2024. It is a beautiful item as it has only been used for testing. Please understand that this is a used item. The original paper box at the time of purchase will be included. I am selling it at a special price personally to clear out the mouthpieces I am not using, so I will not be lowering the price for the time being. Thank you for your understanding. Returns and refunds are not possible. Please ask any questions before purchasing.