Bigsby BB B12

for solid body and thin acoustic/electric guitars - Aluminum - single or complete Bridge - righthand only - screws included - also available in gold plated - top mounted, requires no routing of the body - Made in USA Series: Original Kalamazoo Line Manufacturing Method: Sand Cast Manufacturing Material: Aluminum Approximate weight: 344 grams Overall Length: 212.7 mm Overall Width: 92.1 mm Arm adjusts with 1/8” Allen wrench and 5/16” socket