Completely handmade, crafted using the same processes as musical instruments. When metal is bent forcefully, stress accumulates, hindering resonance. Re:VIBRATION is completely handmade and undergoes annealing to equalize the molecular bonds of the metal, producing a stronger resonance. This is similar to the "〇〇 processing" found in musical instrument stores, which improves sound. It's the same as the difference between instruments manufactured in a factory and those handcrafted by artisans. This process is labor-intensive, but essential for achieving optimal resonance. Preventing vibration loss, while also pursuing ease of use. Efficiently returning vibrational energy lost from joints and the mouthpiece back to the body of the instrument is a natural effect. Re:VIBRATION also adds the effect of a ring. By adding moderate resistance, it not only enhances vibration transmission but also creates a core, strong resonance. And above all, it doesn't require the troublesome task of attaching it every time you use it. Simply insert it into the mouthpiece. Re:VIBRATION/STARLING SILVER/for Horn Material: Ring Section: Sterling Silver (1mm thick, 5mm wide) Bridge Section: Sterling Silver (1.3mm thick, 6mm wide) Finish: Normal: Mirror Finish HAMMERD: Hand-hammered finish Compatible Instruments: French Horn *If you are using a mouthpiece or adapter with a special shape, please provide the diameter size of your mouthpiece. We will create a custom order. No additional charge. STARLING SILVER A model using STARLING SILVER 925, which is used in the silver material of many musical instruments. Silver produces a directional resonance, creating a sound that resonates to the far corners of the hall. The ring section can be changed to brass or copper as an optional extra.