This is a brand new never been used Fender Strat Squier Bullet Tremolo Bar also known as a whammy bar. This fits all Squier Bullets, the knock-off Fender style guitar with same whammy bar set up, and similar threaded whammy bar type guitars. I have a Fender Mexican Stratocaster and it fits snug on that as well. Threading: 6mm-1.0