Superslick Professional Key & Rotor Oil is sold in a refillable 1/2 ounce plastic bottle with needle applicator. The bottle and needle applicator is protected inside a clear plastic tube with a removable end that is brilliant.
The bottle will never wreak havoc in your mute bag because it's safely riding inside the tube. Someday if you're finished with the refillable bottle, the tube is still useful for other things. Superslick Oils are made in USA.