This product can drop a little with the piston wall to prevents the rust produced by the water vapors and reduce the wear and tear.

Features:
Super pure valve oil for music instrument.
Compact design, portable and easy to carry around.
Suitable for trumpet, horn, trombone, brass instrument, etc.
Keep valves and piston moving quickly and smoothly.
Fast acting oil, long lasting.
Can well lubricate the moving parts of the instrument to reduce the friction damage, extend the life of the instrument.

Specifications:
Item name: Valve oil
Capacity: 30ml
Usage: Brass Instruments
Color: transparent
Package size: 90 * 50 * 30mm / 3.5 * 2.0 * 1.2in
Package weight: 30g / 1.1ounce

Packing List:
1 * Valve Oil