This lock is made from heavy-duty mild steel and is a perfect replacement for the way rc Lock. It's compact and fits hywa rc Lock perfectly, the lock is made entirely with high-quality material which guarantees durability and functionality. . It has good protection for your vehicle. The main function of this lock is locking the doors on your car, or other heavy vehicles. When the power supply range is changed, it will automatically change to the new range. The very unique point of this lock is that it's car can become a telephone if you want.