Specifications ◆ Model Name: GE1966T ◆ Finish (Color): CK / Cosmo Black ◆ Type: Tremolo Unit ◆ String Pitch: 10.8mm ◆ Sustain Block: 33mm ◆ Contents: Tremolo unit, complete accessories (arm, lift-up bolt, springs x4, spring holder, holder set screws x2, screws, wrenches x3 types), instruction manual The color is Cosmo Black! It's difficult to capture its characteristics in photos, but it has a subdued, smoky silver color, and the texture and light reflection are different from other colors, giving it a heavy color ring. This is the GOTOH Floyd Rose type tremolo unit, "GE1996T". Made in Japan, GOTOH is renowned for its high-quality, premium parts! GOTOH's unique torque-adjustable arm, stud lock function, and above all, its high precision are unmatched. The sustain block is 33mm. For other details, please refer to the GOTOH official website for the dimensional chart, which is more reliable. 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 where the vibrating strings first transmit their vibrations. If you cut corners here, even a good wood body and neck won't matter.