BiNak 495 Oil offers superior lubrication for all types of brass instruments. BiNak 495 features a Pour-Point Depressant, which allows this oil to perform well in cold weather conditions. The lack of petroleum distillation and alcohol keeps this oil from evaporating, providing long-lasting lubrication between applications. BiNak 495 Oil also contains no silicones, so this oil helps protect the instrument without gumming up in warm temperatures. BiNak 495 Oil can be used as a valve, slide, key and rotor oil and is available in a 2 ounce plastic bottle.