BERP Bio Oil #3: Heavy Medium Bore Tenor Trombone The case has a fixed

The case has a fixed thin front pouch for sheet music and accessories

- Separate 4th valve assembly through a

Largest “V” cup in the lineup

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BERP Bio Oil #3: Heavy Medium Bore Tenor Trombone The case has a fixedBERP Bio Oil #3 is the heaviest of all the "classic" or "vintage" oils out there. If you have an old horn with valves that are less than air tight, this is the oil that will help! This valve oil is non toxic, petroleum free, and available in the widest range of viscosities on the market. This new oil has been developed by the makers of the Berp together with the scientists of Novvi and is made in the USA from sustainably grown sugarcane. Novvis