Upgrade your trumpet with this Set of 3 Corks, including o-rings, felts, and corks. This set is essential for maintaining and improving the performance of your trumpet. The top valve felts ensure a smooth and quiet movement of the valve, enhancing your playing experience. Made of high-quality materials, these corks are durable and long-lasting, providing a perfect fit for your trumpet. Trust this Set of 3 Corks to keep your trumpet in top condition and ready for your next performance.