This is a used listing for Stratocaster parts. The contents are as follows: * Synchronized tremolo bridge PW-29, 6-point support, string spacing 10.8mm, 6 wood screws, hex wrench included * Tremolo arm with tension spring * Tremolo springs, 3 pieces, tremolo claw with wood screws * Tension pin (string guide) with wood screws * Box (reused, so it may not be the original packaging for the listed items) These parts are believed to be primarily Fender (Mexico?) made, but the tension pin is likely from another manufacturer. These are replacement parts from customizing my own guitar.