Feature:1. Use metal rings, strong hydraulic sealing, compatible for door and window installation.2. Tight connection between ball and bearing, small clearance, effectively ensures gentle opening.3. The hinge can rotate 360 degrees, no noise during use, secure and reliable, lengthy service life.4. Selected positive zinc alloy materials, durable, wear‑resistant and corrosion‑resistant.5. It adopts sizzling and cold treatment, no sparks due to friction, and no deformation after long‑term use.Specification:Condition: one hundred pc Brand NewItem Type: Door HingeMaterial: Zinc AlloyFeatures: The Hinge Can Rotate 360 DegreesPackage List:1x Door HingeNote:1. Please enable 0‑1 inch error thanks to manual measurement. Thanks on your understanding.2. Monitors aren't calibrated same, merchandise color displayed in photos may be showing slightly assorted from the genuine object. Please take the real one as standard.