A set of YAMAHA trumpet mouthpieces, valve oil, and brush. - Brand: YAMAHA - Product Type: Valve Oil - Product Type: Mouthpiece Brush - Product Type: Mouthpiece - Material: Metal - Mouthpiece Type: Trumpet Mouthpiece The following four items are for sale: 1. Mouthpiece (Yamaha TR-11B4) 2. Mouthpiece brush 3. Valve oil (Synthetic) Opened and used about half. 4. Gauze (bonus) #Entertainment/Hobbies #Trumpet #Lesson #Mouthpiece #ValveOil #MouthpieceBrush #BonusGauze #WindInstruments I had heard that it was difficult to make a sound on the trumpet, so before buying an instrument, I bought a mouthpiece and brush and practiced making sounds. I was unable to continue lessons due to a mouth injury, and I no longer have the opportunity to use them, so I am offering them for sale to those who are aiming to play the trumpet or are interested in it.