This is a Yamaha wind instrument care kit. This set includes various items necessary to keep your wind instrument clean and properly maintained. Main contents: Lubricants such as valve oil and slide grease Cleaning supplies such as polishing cloths and polishing gauze Specialized brushes such as cleaning swabs and mouthpiece brushes Instruction manual and drawstring bag Uses: Ideal for those who are playing a wind instrument for the first time or for the care of a new instrument. It contains all the essential items for daily maintenance. Only the oil and grease have been used once.