this gear is for a pre-cbs vintage fender bass, 60's vintage reissue series bass, or any bass that has reverse fender style gears. i am original owner. i had it on a '64 p-bass, which i sold. if you've never owned a D-tuner, you will use your screws that already mount the gear plate on the back of the head stock to mount the D-tuner plate. it's a simple procedure, and if you ever want to switch back to your original gear, it's just as simple. original plastic box included . priority mail shipping including.