The Yamaha standard, pro, or custom Xeno Trumpet easy to install valve repair kit. Comes with 3 guides, springs, valve stem felts, top cap felt washers, and 2 water key corks. Fits Standard type (YTR-2330), Pro type (YTR-6335), and custom Xeno with brass guides (YTR-8335, 8345, and other Xeno custom series trumpets). Contact me if you wish to verify your model's fit. If you need just the valve guides, they are listed separately.