Smooth Quiet action: Engineered to reduce sound, these hinges deliver nearly noiseless door movement, ideal for bedrooms and study areas where peace is valued & Long Lasting: With excellent resistance to, these hinges maintain in humid conditions, well suited for coastal regions or high humidity environments Elegant Concealed Construction: Built from premium stainless substance, these L shaped rotation hinges feature a subtle appearance that blends seamlessly with modern doors Adjustable Installation: The rotation structure allows multiple position adjustments for customized door openings Heavy Duty Load Capacity: The stainless construction provides strong for substantial doors including main entries and balcony doors, sagging or warping over time, Manufacturer: JAZUAIAO