1. Ball bearing hinges are sturdy and built to withstand daily wear and tear, with good strength and durability. 2. Ball bearing hinges ensure smooth door operation and withstand frequent use, even with heavy doors. 3. Ideal for indoor and outdoor, residential and commercial use, they offer excellent stability and versatility. 1. Polished surface, smooth and burr-free, delicate touch 2. Thickened material, strong load-bearing capacity, not easy to deform 3. Stainless steel bearings, smooth and quiet opening, reducing noise, Manufacturer: RIHATAP