Signer: Adam Levine (lead singer) Item Type: Full Size Autograph Edition Stratocaster Style Guitar Guitar Size: 39in in length Item Certification: This item is guaranteed authentic and has been certified authentic by James Spence Authentication (JSA) and PSA/DNA the leading authority on autograph authentication in the entire world! It has been affixed with a tamper proof holograms with unique serial number that can be verified in the JSA and PSA/DNA databases. It comes with a matching certification cards. Buy with confidence from a trusted source in the autograph industry!