Made of high-quality stainless steel, it will never rust, durable and wear-resistant. Quiet design, smooth and silent opening and closing, enjoy a quiet environment. Rotate the hinge externally to increase safety. It is small in size and portable, light in weight, and easy to carry. Lubrication pins and ball bearings enable smooth opening and closing, and can be used for left-handed or right-handed doors. Suitable for bedroom doors, bathroom doors, office doors, hotel doors, etc., Manufacturer: Shun Yingtong