GOLDO TM060 - Backbox, Vibrato/Tremolo Stabilizer Tremolo stabilization Device for STRATOCASTER ® - made in GermanyPrinciple similar to that of the Hipshot™ Tremsetter, allows you to return the tremolo to its starting position without vibrations.The backbox stabilizer automatically returns a tremolo to the same position every time. The guitar will stay in tune better, and tuning is quicker and more accurate, because the bridge won't move due to changes in string tension.The backbox stabilizer allows for free floating movement of the whammy bar up or down, and stabilizes the unfingered strings during hard bends.This stabilization keeps the unbent strings from sagging or dropping slightly flat on double stop bends. Designed for STRATOCASTER style Guitars with floating tremolo bridges, but can be adapted to many other tremolo equipped guitars - including Floyd Rose bridges..