Package includes 4pcs heavy duty stainless steel door hinges with matched color mounting screws for direct installation Made of thickened premium stainless steel with anti-rust and anti-corrosion treatment, sturdy structure for long-lasting use Built-in high-quality bearing supports full 360° rotation, ensures smooth, silent and jamming-free daily operation Non-mortise design requires no grooving on door or frame, saves time and brings simple and quick installation Square corner sleek design with high load-bearing capacity, suitable for wooden doors, alloy doors, cabinets and wooden boxes, Manufacturer: mengjiangjiang