This is a silver-plated SMK Craftworks 750R mouthpiece for French horn. I've used it a few times, but I've decided to stick with a different mouthpiece, so I'm selling this one. My impression after using it was that it was similar to the E. Schmidt type in terms of blowing feel and tone. It also had a soft tone while maintaining a dense sound. Overall, it's a well-balanced and good mouthpiece. There are some marks on the shank from insertion and removal, but otherwise, it's in good condition. The following is a transcription of the official product description: SMK Craftworks designed this mouthpiece from scratch, for horn players, by horn players. It's comfortable on the mouth and produces a good sound. 【Brand】SMK Craftworks 【Model】SMK-750R-SV 【Shape】Cup Inner Diameter: 17.5mm 　　　　Throat Diameter: 4.0mm 　　　　Cup Shape: U-cup 　　　　Depth: Shallow 　　　　Rim: Rounded 　　　　Shank: 3/100mm 【Surface】Silver-plated finish