The Bigsby B-7 Vibrato Kit is a vibrato kit, for arch top electric guitars, made from cast aluminium, an 8.75" length, and an arm that adjusts with an 1/8" Allen wrench and 0.3125" socket. The Bigsbys B-7 Vibrato Kit contains everything you need to provide your own arch top guitar with a classic vibrato system. The Bigsby was the first successful design of what is now called a whammy bar or tremolo arm, although vibrato is the technically correct term for the musical effect it produces. In standard usage, tremolo is a rapid fluctuation of the volume of a note, while vibrato is a fluctuation in pitch.

The main features of the Bigsby B-7 Vibrato Kit include:

• Material: Cast aluminium
• Overall Length: 222.3mm
• Overall Width: 92.1mm
• Arm adjusts with 1/8" Allen wrench and 5/16" socket wrench
• Designed for use on arch top solid body guitars
• Finish: Chrome
• Weight: 354 g