This is a mouthpiece ring for trumpets, crafted by hammering thick 950 silver. It increases the density of the sound, clarifies the core, and improves responsiveness. While sterling silver bells and the like can feel heavy, I believe that increasing the weight of the mouthpiece efficiently transmits vibrations to the instrument without loss, leading to improvements in both playing accuracy and resonance, including monitoring. It can be used with common mouthpieces such as Bach, YAMAHA, and LASKY. [There is an upper and lower direction for the taper insertion. When attaching, please check the taper gap with the mouthpiece and use the side with the smaller gap as the shank side.] *We can only offer a slight discount for shipping when purchasing multiple items. We appreciate your understanding due to the rising price of silver.