General description Sturdy and durable, the CCYKXA 360 Degree Rotation Hidden Pivot Door Hinges are made of heavy-duty stainless steel, ensuring maximum corrosion resistance and longevity. These hidden hinges provide reliable support for years, allowing doors to swing easily and quietly with their unique ball design. Technical specifications Dimensions: 100×23×10 mm Material: Stainless Steel Quantity: 2 pieces Installation The top pivot features a retractable spindle for quick and easy installation. Can be mounted at the top level of the door, fixed to a hole on the door surface. Usage Ideal for swinging doors, gates, and more. Offers great pivot adjustment options for heavy doors that may strain traditional door frame hinges.