Yamaha Trombone Rotary Valve Stop Arm, Stop Arm Screw and String Screw Set
£19.99
This one is 9 mm, as shown in the picture. 1 x Rotary Valve Stop Arm String Screw - Yamaha Part Number D0841051. 1 x Rotary Valve Stop Arm Screw - Yamaha Part Number D0841041. 1 x Rotary Valve Stop Arm - Yamaha Part NumberD0841071.
