1. The outer cup is made of casting CoCrMo alloy or Stainless Steel, with mirror polishing treatment, the friction coefficient is extremely low;
2. Lock structure: it is very convenient to install and effectively prevent the small head from dislocating;
3. When revision or replacing the inner head, only need to push the lock key;
4. Dual center motion design ensures maximum range of motion and minimum wear of the hip joint.