Hidden Door Hinge, Stainless Steel Pivot Hinge, Up to 570Lbs Load-Bearing, Hidden Door Bookcase Hinge, Heavy Duty Swinging Door Hinge 360° Rotation for Secret Door or Concealed DoorBrand: XMZ DDUP Color: Black Features: Premium MaterialMade of thick solid 304 stainless steel, solid and durable. Specially treated painted surface to keep corrosion resistant and elegant. Well crafted to keep running smoothly. High load bearing capacity. Up to 600 pounds of maximum load bearing. The exquisite and scientific design, high strength structure are sufficient to cope with the vast majority of scenarios. 360 Fully RotationUp and down