It is made of solid brass, which is durable and not easy to damage. Simple designs but powerful function. Easy to fasten without falling off, smooth lines, no sharps edges, easy to use. The screw locking designs is adopted, which is easy to unscrew and add keys, providing a safe fixation for your keys. Portable size and weight is light, easy to carry, you can hangs it on your belt, backpack or handbag. You can hangs all kinds of keys, such as car keys, door keys, cabinet keys, house keys.