Title: Do NOT buy!
Product review: Blue Juice is a horrible product if you want your trumpet or other brass instrument to last do not but Blue Juice. Blue Juice leaves behind a residue in all your Valves/Slides. Some music stores promote it but it honestly is not worth the buy if you want a great valve oil I highly recommend Al Cass Valve Oil which lubricates valves perfectly while Blue Juice has to be reapplied each time you get out your horn Al Cass lasts for a very long time with no side effects.
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