The Texas rockers have used the same tone formula for decades, but when it comes to gear and making a statement, they’re kings of style.

All of ZZ Top’s Shure UR4D wireless systems are housed in vintage tobaccos tins found in antique stores by technician Elwood Francis. Hill and Gibbons once had real bullets in their instrument straps until airport customs confiscated them, so they filled those holes with $2 bills for now.

ZZ Top’s guitar and bass tech, Elwood Francis, explains the ins and outs of the newest guitars and basses that Billy Gibbons and Dusty Hill have out on the road for 2015.