The Original Seamless Acrylic Drum Set. Not just another transparent trap kit for the hipster set, Crystal Beat's original seamless shell is back, upgraded, and fortified for today's power player. In 1973, Pearl set a benchmark in the drumming world with the introduction of Crystal Beat. A stunning combination of visual appeal and powerful sonic attack, Crystal Beat's revolutionary seamless construction was molded -not rolled- creating a strong acrylic drum system that could stand up to the rigors of touring. Crystal Beat's toms include the Opti-Mount suspension system to remove undue shell pressure and increase sustain. 1.6mm triple-flanged hoops offer just the right amount of attack without sacrificing tonal body.