This is a Schaller Tremolo (S-FRT-II). The "S-FRT-II" is the Schaller tremolo known as the OEM for Floyd Rose. Although compatibility is sacrificed due to the use of string lock screws different from the Floyd Rose Original, the structure prevents the lock screws from protruding at the back. This makes it compact and fits very well in guitars mounted with a recessed tremolo cavity. Also, the market price is not as high as the Original, and the base plate is thicker than the Original, which is said to improve the sound. Therefore, it is a highly recommended tremolo, balancing price and precision, especially now that the Original has become more expensive and harder to obtain. [Included Items] ・Bridge unit body ・Arm ・Nut set (with screws. Can be attached on either side) ・Springs, anchors ・String retainer (with screws) ・Studs ・2 wrenches ※ The nut will be the one indicated in the title (either R2/R3). ※ The tremolo block length is 37mm. This is a new, unopened boxed item, directly imported from Schaller headquarters. Recommended for replacing cheaper bridges like the Floyd Rose Special. Please note that, like the Floyd Rose Original, the Schaller is also running low on worldwide stock, so we recommend considering your purchase as soon as possible. *SCHALLER-TREM-GD37R2