The pivot hinge is made of high-quality stainless steel, rust-proof and corrosion-resistant. It supports heavy and wide doors with ease and stability. Durable. Add a touch of elegance to your space with this pivot hinge. It allows for a hidden door design that rotates 360 degrees. Ideal for bookcase doors, bookshelf doors, cabinet doors, panel doors, and more. The hidden door hinge features a unique upper and lower connection design, supported by the bottom arm and floor, reducing pressure on the frame. This provides enhanced strength and stability, supporting weights up to 100kg/220lbs. Detailed installation instructions are included, guiding you through each step for easy installation. 1 set of pivot hinges with screws, 1 door stop ball hook hardware. Color: Silver Material: Stainless steel and wood Type: Heavy/Type I Package Contents: 1 set x hidden door hinge Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.