FENDER Locking Stratocaster/Telecaster All Short Post Tuning Machine Set 0990818105 High performance tuning at your fingertips. Set of six locking tuners designed to fit most modern-style Fender electric guitars with dual-pin mounting configuration. The set comes with 6 short post tuners are used to increase the break angle over the nut and add tuning stability and eliminates the need for string trees across all strings.