Premium Materials: Crafted from genuinely high-quality, substantial materials, these door hinges offer exceptional robustness. The rust-proof treated surface ensures outstanding corrosion resistance, stability and durability Premium Bearings, Smooth and Silent: Fitted with superior bearings, they operate without jamming or stalling, guaranteeing completely silent functioning Quick and Simple Installation: Installation takes mere moments. Requiring only a screwdriver, fitting is effortlessly completed within minutes Suitable Applications: Compatible with all types of interior doors, including cabinet doors, drawer units, and wardrobe doors. Also suitable for outdoor components such as shed windows, shed hardware, shutters, skylights, vents, and plant stands, including storage sheds, playhouses, and animal shelters Heavy-duty hinges: Reinforced metal construction. Installation recommendation: Fit at least 3 hinges per interior door; at least 4 hinges for heavy doors/entrance doors, Manufacturer: bogniga