Lube Master THREE (Monster Oil)

Introducing the Lube Master mouthpiece, model Three, currently creating a buzz on social media and among professional musicians.
I purchased this on Mercari in March 2026, but it wasn't the right fit for me, so I'm putting it up for sale.
I only tested it for a few minutes to check its compatibility with my main instrument (YAMAHA Chicago model). Compared to my current mouthpiece (equivalent to a 1-1/2C), I found the cup to be too deep. I've decided to stick with my current setup, so I'm offering it to someone who will cherish it while it's still in excellent condition.

[Important Notice]
Upon re-inspection, I discovered some scuff marks on the body (please refer to the 5th photo).

These marks do not affect playability in any way. As a result, I've reduced the price from my original listing.
This is a great deal for anyone who doesn't mind the minor cosmetic imperfection. It's first come, first served, so don't miss this opportunity!

From the manufacturer's website:
About the Lube Master Series
The three individuals behind Monster Oil are professional trumpeters.
They were searching for the ultimate mouthpiece. Or rather, they *are*.
All trumpeters are constantly searching for their destined mouthpiece.
One day, he encountered it: a mouthpiece from the Mt. Vernon era of BACH.
He finally found a supreme mouthpiece, and it's easy to understand why so many legends continue to use them.
However, he spent an enormous amount of time and money to find that mouthpiece. The significant individual differences due to their handmade nature were a major reason.
He also learned that mouthpieces are finite and have a limited lifespan.
After much deliberation and struggle, they decided to stop using their hard-won mouthpieces and embark on creating their own.
Aiming to realize a mouthpiece for all trumpeters...

This Lube Master series is the result of studying dozens of BACH Mt. Vernon era mouthpieces, considered the pinnacle of trumpet mouthpieces, and blending their unique characteristics into a single instrument.
Three
For users of 1 1/4C to 3C.
The origin and the pinnacle. Truly for all genres.