Yamaha Synthetic Rotor Oil 40ml

Yamaha rotor oil is an ultra-light petroleum-based oil specifically refined to moisten and protect the close-fitting interior surfaces of rotary valves. Use in conjunction with Yamaha Rotor Spindle Oil for optimum performance on french horns, trombone F-attachments, and any other rotary valves.
The addition of corrosion inhibitor protects from rust valve casing with rotor. 40 ml capacity.