Thank you for viewing! The item is a "Finger Ramp for JB, Rear Neck Side." This is a finger ramp compatible with standard JB basses. It's recommended for those who don't want to hide the pickguard design, or for those who pick near the front pickup. The dimensions are: Width: 94mm Length: 42mm on the 4th string side, 22mm on the 1st string side Thickness: 9.5mm near the center, 7.5mm on the 1st string side (The 3rd string area is the highest) It is made with a 3D printer, and the material is PLA. Unlike typical plastics, the surface is not smooth and has small bumps. Please understand this. *Double-sided tape is included, but it is not compatible with lacquer finishes. Please be aware that it may leave marks on other delicate finishes as well. Thank you for your consideration.