La Tromba AG Key Oil

This oil has just the right viscosity for instruments like flutes and clarinets.
The bottle itself is sealing well and dispersing with it is also not as bad as some others, where simply far too much is applied and creates a mess. Albeit it could be better and for some applications, using a needle and transfer a drop from the nozzle to the needle to limit how much is applied is advisable.
I would and will buy this oil again. It doesn't gunk up either and stays the way it is intended to for years.
La Tromba keeps manufacturing high quality products for instrument lubrication.