Self Closing Pivot Door Hinges, Hidden Door Pivot Hinges, 360 Degree Shaft Swing Door Pivot Hinges Hardware, Stainless Steel Hinge System for Invisible Concealed Secret Wood Door Soft Close (Black)

Adjustable: Our hidden door hinges will automatically close the door when the opening angle is between 45 and 90 degrees; the rotation speed is adjustable | Invisible: Our swing door hinges are completely hidden; once properly installed, the hidden door hardware works smoothly without visible external hinges | Wide Use: The invisible hinges are good at concealing doors into walls; you can either push or pull the door open | Durable: The secret door hinges are made of 304 stainless steel and zinc alloy; the door hinge kit is quite sturdy and heavy duty | Upgrade: We optimized and improved the packaging of our auto door closer based on analyzing our customers' experience