Wide Application Suitable for wooden doors, aluminum frame doors. Special design and manufacturing for Hidden door,Heavy duty door,Secret door,hidden door bookcase,bookshelf door,swing door, hidden shelf door,and murphy door hinge kit for murphy door. You can create hidden doors according to your needs. Installation is fast and simple with our hinges,which include all necessary hardware. Sturdy Metal ConstructionCrafted from thickened steel, these hinges resist rust, corrosion, and wear. The reinforced structure and fine workmanship ensure decades of reliable performance, even for heavy-duty pivot doors or hidden bookshelf doors. ApplicationHidden door hinges for secret door,Hidden door hinge,Murphy door hinge kit,Murphy hidden door bookcase,Pivot door hardware,Pivot door hinge ,Hidden hinges for secret door, Secret door bookcase, Heavy duty pivot door hinges, Door pivot hinge set, Hidden bookshelf door,Secret door ,Swinging door hinge 360 Smooth RotationThe up/down linkage function allows 360 rotation (central axis installation) or 180 swing (side installation). Perfect for customizing hidden doors, pivot doors, or unique architectural designs while ensuring silent, fluid motion. 570Lbs High Load-BearingSupporting up to 570 lbs (260 kg), these hinges feature a scientific structural design, 30 premium screws, and advanced forging technology. Ideal for secret door bookcases, Murphy door kits, or swinging doors, they deliver unmatched stability and strength. Unique Bearing DesignPrecision-engineered base bearings eliminate noise and friction, enabling smooth, flexible door movementeven under heavy loads. Say goodbye to squeaky hinges and hello to stealthy secret doors!