 It is made of multiple parts, including the PC Frame, Metal Frame, and Core.Some omit a standard frame and core design, such as L-Drago Destroy which has an upper metal frame to replace the Energy Ring and a lower PC core with rubber inserts to replace the Fusion Wheel, essentially flipping the common construction of most tops from this system.The 4D Bottom replaces the Spin Track and includes a built-in gimmick involving the tip, such as being quickly changed between battles without disassembly, changing performance based on stamina, or spinning freely on a bearing.