The M10.2 Archtop Bridge comes with our machined aircraft-grade aluminum M10 bridge in bright nickel plating as well as our custom machined Richlite baseplate that incorporates our patented mounting post/thimble design. Included is a custom Mastery pre-set high carbon steel valve spring for your Bigsby ® Vibrato and an extra set of shorter mounting posts. 3M ® double-sided tape also included.