When inspecting a shipment from Colombia that was destined for New York, agents at the international mail facility of Miami-Dade County (Fla.) Airport found that a hole had been drilled in one of the club shafts, to fill it with cocaine with a street value of $30,000.

Golf clubs recently shipped from Colombia and destined for New York didn’t have a value of $30,000 because they were made with titanium or carbon steel, USA Today reported.

Rather, when the clubs arrived at the international mail facility in Miami-Dade County (Fla.) International Airport, they were intercepted by U.S. Customs and Border Protection (CBP) who found just over a pound of cocaine that had been dropped into one of the club shafts after a hole had been drilled into it.

“The estimated street value [of the cocaine, not the clubs] is approximately $30,000,” the agency said when announcing the find on social media.

“Our CBP officers are highly skilled in detecting all types of concealment methods to intercept harmful drugs and to keep them from impacting our communities,” said Christopher Maston, the CBP’s port director of field operations at Miami International Airport.

Images of the golf clubs posted to Twitter by the CBP showed cavity-back irons and an apparently older-model, small-headed driver-type club wrapped in clear shipping material.