1Excellent Performance: The finger button valve hat and shaft accessories set is exquisitely crafted, enhancing the accuracy of key pressing and the smoothness of playing, making it a valuable accessory for musicians. 2Fine Workmanship: These parts are made of metal and white shell that are delicate and beautiful, they are visually appealing and user friendly. 3Easy to Install: Standard size and professional production make the finger buttons and valve hats easy to install on your equipment, choose with confidence 4Easy Carrying: With a small storage box, you can easily carry these shafts and valve hats in your bag, use when you need them. 5Ideal Replacement: Trumpet valve system is suitable for replacing old, damaged, or lost buttons, shafts, hats, this trumpet finger buttons are of stable performance and easy to use. 3 x Rod 3 x Finger Button 3 x Top Valve Cover 3 x Bottom Valve Cover 1 x Storage Box