[High Quality Cold Rolled Steel Material] Our cabinet door hinges are made of high quality cold rolled steel material, plated on the and copper plated on the bottom, anti-rust and wear-, with good strength and durability [Hydraulic Buffer Hinge] 45° buffer closure, silent cushion drive, new buffer hydraulic cylinder reduces impact, allowing you to enjoy smooth and silent opening and closing [Adjustable Installation] New cleats and 6-way/3D adjustment options make installation quick and easy. Easily upgrade your corner cabinets with our 180° hidden hinges [Stable and ] New support fittings play a solid support role to open and close smoothly and stably, not easy to deform, suitable for kitchen corner cabinets, even if the door is closed with force, it close gently and naturally, Manufacturer: Duanthry