This is a replacement neck plate with a 4-bolt design for securely fastening the neck joint of guitars and basses. It enhances the stability between the neck and body, which can positively impact playability and sound. This part is recommended not only for its practicality but also for customizing and dressing up the appearance of your instrument. The thickness is approximately 2.0mm. The items shown in the photos are all that are included, so please check the condition in the images.