Genuine Yamaha Custom & Xeno Trumpet easy to install valve repair kit. Comes with 3 brass valve guides, springs, valve stem felts, top cap felt washers, and 2 water key corks. Fits Custom & Xeno with brass guides (YTR-8335, 8345, and other Xeno & Custom series trumpets). See my item ID# 16028 for a standard trumpet kit,17033 for the Pro version, or 28346 for a Xeno Artist YTR-9335/9445 type with synthetic washers and brass valve guides. Contact me if you wish to verify your model's fit or you need parts for another horn.