New! Made in Japan, High Quality, Genuine Gotoh Tremolo Unit Specifications ◆ Model Name: 510T-SF2 ◆ Finish (Color): C / Chrome ◆ Type: Tremolo Unit ◆ String Pitch: 10.8mm ◆ 6-point support type ◆ Contents: Bridge body, arm, mounting screws x 6, springs x 3, spring holder, holder stop screws x 2, 2 types of wrenches, instruction manual GOTOH boasts the highest level of Japanese technology! This tremolo unit is the flagship model of GOTOH, bearing the number 510 (Gotoh). GOTOH's own patented features include a secure stud lock mechanism and an arm with adjustable torque. The FST mechanism, which secures the strings in a hollow space to maintain more consistent tension, is just one example of the top-notch Japanese technology used in its construction. ★ The difference between the 510T-SF2 and the 510T-FE2 is the saddle! The SF2 uses a bent-type saddle, producing a natural and warm sound. The FE2 has an integrated saddle, resulting in a clear sound with excellent sustain. The SF2 is recommended for those seeking a more natural sound or an old vintage sound. Of course, it maintains the highest tuning accuracy! It's a product that truly deserves to be called GOTOH's flagship model. The nut and bridge (tremolo unit) are where the vibrating strings first transmit their vibrations. If you cut corners here, even a body and neck made of good wood won't matter.