Brass tone shift plate, 3mm thick, ideal for sound quality adjustment. Tone Shift Plate SP-JP-03, a neck plate for guitars/basses designed to improve tone. Brass is used as the material, and compared to general steel plates, it achieves a richer and more mellow sound. This popular replacement neck plate is packed with the commitment of Freedom Custom Guitar, which always creates instruments from the player's perspective. - Brand: Freedom Custom Guitar Research - Model Name: SP-JP03 - Material: Brass - Thickness: 3mm - Function: Tone Shift Plate Purchased new and used on a guitar for about 2 months. This item has been in someone else's hands. No returns or exchanges. Keywords: Tameshibiki (Sound test) Kazuya Yamaguchi fender gibson prs esp Les Paul Stratocaster Telecaster