This is a Signed Guitar that has been Personally Signed & Autographed by X Ambassadors (Sam Harris, Casey Harris, Noah Feldshuh & Adam Levin). This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by PSA/DNA #AB03365.Press Pass Collectibles offers a 100% Lifetime Guarantee on all Autographed & Signed X Ambassadors memorabilia.