brand new and high quality. Can well lubricate the moving parts of the instrument to reduce the friction damage, extend the life of the instrument. High lubricity, non-greasy, non-sticking. This product can drop a little with the piston wall to prevent the rust produced by the water for vapor and reduce the wear and tear. Applicable to all types of brass instruments activities. Color: transparent Material: lubricating oil Capacity: 30ml Quantity: 1pc Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1pc for Valve Oil