Acoustic guitar measures approximately 38" in length and has been hand-signed on a cut that has been repurposed as the pick-guard by Ariana Grande.This guitar is a display guitar. It is a lower-tier version and is not the same quality as one that a musician would play.The autograph includes an official James Spence Authentication (JSA) hologram with scannable QR Code Card for authenticity purposes.Authentication: JSA Hologram with scannable QR Code Card