Thank you for viewing. This is a JK French horn mouthpiece for sale. It has only been used for play testing, so the condition is good. There are some minor scratches. Please understand that this is a used item. There is no box, so it will be wrapped in bubble wrap and carefully packaged for shipping. Model: 4BM Rim Outer Diameter: 24.5mm Cup Inner Diameter: 16.5mm Throat Size: 4.6 Deep Cup Shape: M = U cup Silver-plated finish (SP) Double shank Currently, there is a shortage of these items, and prices are rising. Please consider purchasing soon.