Preferred Material: The mini hinge is made of zinc alloy. Thanks to its fine structure, it can be opened or closed easily and quietly. If you use it with screws, you can fix it more easily on cases and boxes (Screws included). Flexible and Quiet: The bearing ball is firmly connected to the bearing, and the small gap between the bearing and the wing ensures noise reduction and smooth operation. 【Sturdy】: Thanks to the professional workmanship of the material and our precise workmanship, our product is sturdy and of very high quality. The corrosion protection coating ensures that there is no rust on the gate hinge. The trap is weather-resistant for a very long period of use. 【Best Use】: Ideal for making small boxes or crates. Easy to use and install. Wide Application: Suitable for hotels, wooden doors, cabinet doors, light car counters or tables and other DIY projects. With these small hinges, you can make your own pens, pencils or other small boxes or some boxes.