D'Addario Mouthpiece Reserve B♭ Clarinet Mouthpiece X-5 Tip Opening: 1.05mm Facing: Medium D'Addario mouthpieces are manufactured using a completely machined process, ensuring stable quality with no individual differences. You can use any mouthpiece with confidence, knowing it will be of the same high quality. The Reserve series combines ease of articulation with flexible playability and features a rich tone. Recommended for concert bands, orchestras, and solo performances. The item being sold here has had a mouthpiece patch applied for testing, and there are traces of its removal. There are no scratches, and it can be used normally. Thank you for your consideration, understanding the above points.