Sixty seconds and a big rock was all it took for thieves to steal more than $7,500 worth of hair weaves from a beauty supply store in Conyers in the wee hours of Thursday morning.

"You can literally time it" on the store surveillance video, said Lt. Jackie Dunn, Conyers police spokesman.

Around 3:15 a.m., a tan sedan pulled up in front of SJ Beauty and Salon, 1177 West Ave., in downtown Conyers. Three people, wearing hoodies pulled tight on their face to try to hide their identity, got out of the car and hurled a rock through the front window of the store, Dunn said.

The thieves knew what they were after and were selective, said Dunn. They went straight to the high-end hair used for weaves, he said. "They were in and out in 60 seconds."

The thieves got away with more than $7,500 worth of hair weaves, including the premium human hair.

This was Conyers' first official encounter with the weave thievery that has plagued beauty supply outlets throughout metro Atlanta.  The fact that the product is valuable and untraceable makes it a lucrative and low-risk crime, Dunn said.

Thieves have taken note of the same thing.

In metro Atlanta, a series of smash-and-grab robberies that began in the spring at local beauty supply stores has resulted in thousands of dollars worth of hair being stolen, the AJC reported in September. Similar thefts occurred in Chicago, Houston, San Diego and other cities where the take has ranged from $10,000 to $150,000 worth of hair per heist.