Set of 6 Graph Tech String Saver Mustang/Jaguar/Jazzmaster Bridge Saddles made from their String Saver material which is impregnated with PTFE for permanent lubrication and so strings don't bind in their slots during bending or tremolo use, improving tuning stability and reducing string breakage. The saddles come with height adjustment and intonation screws and are pre-slotted (slots can be easily widened if required).