Sturdy Metal Structure:Sturdy metal structure is made of thick stainless steel withspecial surface treatment for heavy-duty door hinges and exquisite craftsmanship.Ensure the door shaft hinges are rustproof,corrosion resistant,sturdy and durable with a long service life.360 Smooth Rotation:The pivot hinge is mounted on the center shaft of the door, allowing for 360 rotation or 180 lateral rotation,ensuring the door moves smoothly and freely.It is suitable for a variety of styles and scenarios,such as secret doors and swing doors.Excellent Load-Bearing Capacity:Unlike traditional hinges,our door hinges unique up-and-down linkage design replaces conventional frame hinges,supported by the lower arm and floor to reduce frame pressure.The murphy door hinge kit scientifically engineered and reinforced with 30 high-quality screws,it can withstand up to 260 kg (573 lbs).Wide Application:Suitable for wooden doors,and aluminum frame doors.Designed and manufactured for hidden doors,heavy doors,secret doors,hidden door bookcases,bookshelf doors,swing doors,hidden shelf doors,and murphy door hinge kits.Customized hidden doors can be built on demand to meet diverse needs.Easy to Install:Detailed installation manual is included.Package also includes a screwdriver,drill bit,and gloves for quick installation.The top hinge is equipped with telescopic pins,allowing for easy installation on the top of the door and secure placement in the pre-drilled holes.Suitable for DIY enthusiasts and professionals.