Oddysey Essentials Valve Oil is a high-quality sealant and lubricant. If you play a valved brass instrument it is important to oil your valves every time you play – or at least three times a week. This will enormously prolong the life of your instrument whilst keeping the action and playability fast and smooth. This handy bottle is perfect for stowing in your instrument case and has a child-proof cap for extra safety. Specifications Volume: 29.6ml (1 fl. oz) Suitable for: Any piston-valved brass instrument