[ALL-INCLUSIVE KIT] Everything you need for instrument maintenance: Sturdy mouthpiece brush, valve brush, flexible bore brush, lint-free microfiber cleaning cloth, lubricating valve oil, and long-lasting tuning slide grease. | [HIGH QUALITY] Durable, odorless & safe! We carefully choose the best materials for production using specially blended lubricating oil from Japan. Our care kit effectively extends the longevity of your horn’s life, keeping your instrument clean and healthy. | [SAVE MONEY] Libretto listens to our customer’s needs. We strive to keep improving the kit to make it both high-quality and cost-effective. | [NECESSITIES & GIFT] The Libretto care kit has everything for each student, musician, or music lover's maintenance needs. Comes with a light, handy hanging case and universally fits most name brand horns. It is a perfect gift for students at school or at home. | [USER-FRIENDLY INSTRUCTIONS] It's not only important to know how to play your horn, but also know how to clean it. Libretto provides a comprehensive instruction manual with every kit. With just few steps, your horn will be looking like new! Make sure to clean your horns at least every month or two!