Hinges Made of high-quality stainless steel material, surface treated with nickel plating, rust-proof, waterproof, sturdy, environmental-friendly and safe to use. With copper core and 6pcs thickening arms, it is more durable than that hinge with steel core and only 5pcs thickening arms, and our hinges also has exquisite workmanship and strong stability, really durable and reliable. And the mute buffer is made of top nylon material, it could reduce and even eliminate the noise when you open the door. good weighing performance, large force-bearing area, stable and durable, use at ease. The material used is strong enough to weigh the weight and is not easy to deform and has a long service life., Manufacturer: XXUCZVRYO