E. Schmid Digital 90 Horn Mouthpiece. It felt like it played easily and produced a good sound. ○ Size Cup Diameter: 17.5 Cup Shape: U Cup Rim Width: 4.0 Bore Diameter: 4.5 Cup Depth: Deep Shank: American I'm selling this because I've escaped the mouthpiece rabbit hole. Please understand that there is some wear and tear. Since it's used, please refrain from returns or exchanges. Please do not negotiate the price. If it doesn't sell, I will lower the price. If you enter your desired price, I will consider it immediately. I will package it securely with bubble wrap and ship it.