Features: brand new and high quality Compact design, portable and easy to carry around. Suitable for trumpet, horn, trombone, brass instrument, etc. The bottle made of superior plastic material, lightweight and portable. They decrease the abrasion of wearing to lengthen the lifespan of your instrument, make you instrument for fresh and rust-proof. Suitable for trumpet, horn, trombone, brass instrument, etc, can be applied to maintain its for key and piston. Specifications: Material: for Valve Oil Capacity: 30ml Color: Transparent Type Optional: 3Pcs/12Pcs Package Size: approx.123x100x85mm/4.84x3.93x3.34in Note: Please allow 1-3mm error due to manual measurement. pls 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: 1 Bottle of for Valve Oil