From Kotobukiya. The concept of this main body is to incorporate easy-to-use basic blocks for user customization! The core portion is constructed with simply designed joints that have multiple 3mm connection points that allows for a wide range of customization options with other products. The 3mm connection joints are of the standard type used in Frame Arms, Hexa Gear, Frame Arms Girl, and the Megami Device series for users create countless unique mecha to enjoy.