The Trombotine VB338 trombone slide cream has been known for being one of the best slide lubricants on the market.
Many trombonists will claim that they have been a trombotine fan for years and this surpasses the oils out there.
It lasts a long time and some trombonists have said that "you are more likely to lose it then use it all up" - that is how long it can last!
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