King Trumpet tune-up kit, easy to install. Fits Older King's 600 series (before 491500), Cleveland, & Silver Flair with top action springs (springs are not internal to the piston). Not all soft parts fit every instrument. Not for newer Silver Flair trumpets with the valve guide & spring internal to the piston, see my item ID# 16127 for that kit. Contains finger button felts, top cap felts, springs, valve guides, stem felts and cork washers. Also contains 1 water key spring and 2 natural corks. Contact me if you wish to verify your model's fit or you need other parts.