A modular accessory that the user can attach to an existing core caliper. We have developed and implemented individual module designs that combine into a single core module to ensure 100% compatibility with the diverse requirements of various clients. Through customized modules (Module customizing), Mando can satisfy a wide range of customers, from numerous vehicle manufacturers to the development component market. With only one set of core calipers housing the mechanicals, users have the convenience of choosing the caliper appearance.