The Zildjian A Custom series utilizes radical rotary hammering techniques, thin to medium weights, and a striking brilliant finish to produce a crisp, sweet, and bright sound. Great in any number of playing situations, these cymbals are ideal for contemporary music with their fast response and clean attack.This 10" A Custom EFX crash from Zildjian features laser generated "cut outs" that allow it to produce quick, trashy, white noise effects that are great for accenting and punctuating. Paper thin weight.