■ Trumpet Mouthpiece Adapter Heavy Weight Booster with Hex Wrench Color: Gold ★ This is a trumpet mouthpiece adapter purchased from an online shop. ★ The manufacturer is unknown as there is no marking. ★ Weight is approximately 99.5 grams, and it is the type that is fixed to your mouthpiece with a hex wrench. ★ It is likely that it cannot be attached to Bach Megatone series or bullet-shaped mouthpieces. ★ Almost unused, with no dents. There are some minor scratches and dullness of the plating. ★ We cannot guarantee against damage to the mouthpiece due to overtightening with the hex wrench, so please be careful to fix it with moderate force and install it at your own risk. ★ The mouthpiece is for the image only and is not included (images 5-6). ★ It will be disinfected with alcohol and packaged. ★ It will be shipped via Yu-Yu Mercari Mail from the post office.