Mobile Fidelity Sound Lab LP#9 stylus cleaner is a simple, easy-to-use solution that improves the sound of your analog system while extending the life of your phono cartridge. LP#9 provides smoother, grain-free sound and increased stylus life while also reducing record wear. LP#9 is both a stylus cleaner and a stylus preservative in one bottle. The fluid is only used sparingly, so this half-ounce bottle will last you a long time. A soft stylus cleaning brush, which protects the delicate stylus while keeping it clean, is also included.