"Tilt Disc Lower Body". Fits into a shallow cavity bored into the neck pocket area of the body of the guitar. Also mounts to guitar body with the included two flat head screws. Fits American Vintage Series '70s (US) and '70s-style Classic and Road Worn® (Mexico) instruments using a 3-bolt neck plate manufactured from 1999-Present. Genuine Fender® replacement parts for your '70s vintage-style Micro Tilt™ system.