Tension spring, traditional swiveling steel arm and installation instructions are included. Felt pads help protect the guitar's finish, and the string tension bar has nylon washers for smooth operation.
The Bigsby B70 vibrato is designed to fit 1-1/2" to 2-1/4" (38.10mm to 57.15mm) guitar body thicknesses. The unit mounts with four supplied screws; two attach to the guitar top. The hinged mounting plate extends 1-5/16" (33.34mm) over the end of the guitar, with 1-9/32" (32.54mm) screw hole spacing.The plate has a strap button hole located approximately 1" (25.4mm) from the top of the guitar. The unit extends approximately 6-5/16" (160.34mm) from the mounting plate to the center of the string tension bar.