Thank you for viewing. I purchased this about two months ago and used it, but I've decided to sell it because it doesn't suit me. As described in the official explanation below, it produces a powerful and highly directional sound. The condition is good, so please consider it. Re:VIBRATION effectively returns the vibrational energy lost from the outside of the mouthpiece back to the instrument. ReVIBRATION focuses on "lost energy" rather than resistance. Mouthpieces designed for detachment have a tapered structure with a small connection point to the mouthpipe, and the vibrational energy lost is at a level that cannot be ignored. Returning this "loss" to the instrument body as much as possible. This is the effect of Re:VIBRATION. When attached, you will feel the difference in resonance and vibration from your hands, lips, and ears. This sometimes gives the performer power and sometimes frees the performer from excessive tension and stress. "Not tensing up" is an important issue that is directly related to all problems. By not tensing up, high notes become easier, fortissimo becomes stable, and the tone improves beautifully. It also allows for flexibility and delicate expression. Re:VIBRATION enhances the resonance itself while also bringing about positive changes for the performer. Revive. With the vibrations returning to the body, it leads to the best performance. Size: Ring part: Width 5.0mm, Thickness 1.0mm, Bridge part: Width 6.0mm, Thickness 1.3mm STARLING SILVER resonates widely and strongly from the top to the bottom of the frequency range, resulting in a remarkably wide and deep resonance. By using sterling silver for both the ring and bridge parts, a large amount of vibrational energy is transferred to the instrument, maximizing its potential. It is the best finish in the Re:VIBRATION lineup. You may feel a slight increase in resistance, but the effect can be described as "amazing." The HAMMERED model not only has a beautiful, irregular reflection pattern due to the hand-hammering process, but also hardens the metal. This allows vibrational energy to be transmitted more effectively than the normal model.