Thousands of counterfeit Gibson electric guitars were seized at the Los Angeles-Long Beach Seaport, according to U.S. Customs and Border Protection.

U.S. Customs and Border Protection (CBP) said Tuesday that $18 million in fake Gibson guitars were seized in California, which the agency called the “largest counterfeit musical instrument seizure on record.

Thousands of fake Gibson electric guitars were seized this week in California that could have sold for millions of dollars, according to officials.