Pearl Crystal Beat CRB525FP/C is a full 5 piece kit. All transparent, seamless, molded acrylic shells are stunning visually, great sounding and built tough. The 20x16 bass drum gets the job done from jazz to hard rock. Two Opti-Mount toms, 10x7 and 12 x8 and two floor toms, 14x13 and 16x15, really give this kit a complete sound and versatility. Even with all this Pearl offers individual components to expand and customize your configuration.