Monster Oil Lube Master Trumpet Mouthpiece Retail Price: ¥28,050 Used for a few test plays and then stored. UPMAKE's ReST-M2 resin processing has been applied to the rim and inside the cup only. Processing fee: ¥10,000 + masking fee ¥2,000. The total price is ¥40,050, including the retail price. Highly recommended for those with metal allergies! Also, for those who don't, it feels good on the mouth and allows you to produce a warm tone (in my subjective opinion), so it's worth trying! Regarding Lube Master: Imported, currently takes 2-3 months for delivery. A highly recommended product, first come, first served! The following is quoted from the manufacturer's description: ● About the Lube Master Series The three people who started Monster Oil are professional trumpet players. They were looking for the ultimate mouthpiece. Yes, they were too. All trumpet players continue to search for the mouthpiece that suits them. One day, they found it. A BACH mouthpiece from the Mt. Vernon era. They encountered the best mouthpiece, which is understandable why many legends continue to use it. However, they spent a vast amount of time and money to find that mouthpiece. The individual differences were a major cause due to being handmade. And they also knew that mouthpieces are finite and have a lifespan. They struggled, but they stopped using the mouthpiece they found after all that trouble and started making mouthpieces. Aiming to realize a mouthpiece for all trumpet players... The Lube Master series is the result of researching dozens of BACH's Mt. Vernon era mouthpieces, which are said to be the masterpieces of trumpet mouthpieces, and blending the liquids of each into one. One For users of 1 to 1 1/2C.