Specifications ◆ Model Name: GE1966T ◆ Finish (Color): B / Black ◆ Type: Tremolo Unit ◆ String Pitch: 10.8mm ◆ Sustain Block: 40mm ◆ Contents: Tremolo unit body, all accessories (arm, lift-up bolt, springs x4, spring holder, holder set screws x2, screws, wrenches x3 types), instruction manual This is the GOTOH Floyd Rose type tremolo unit, "GE1996T". Made in Japan, this high-quality, premium part is from GOTOH, a company renowned for its excellence! It features GOTOH's unique arm with adjustable torque, stud lock function, and, above all, its unparalleled precision. The sustain block is the standard 40mm specification. For other details, please refer to the dimensional chart on the GOTOH official website for confirmation. We are also selling locking nuts that can be combined with this unit. Please consider purchasing them together. The nut and bridge (tremolo unit) are the first points where the vibration of the strings is transmitted. If you cut corners here, even a body and neck made of good wood will be meaningless.