Package quantity: 1 pair of hinges, length: about 74cm Material: the product is made of stainless steel quality assurance, non-corrosive, anti-oxidation, safer and more reliable. These swing door pivot hinges have smooth and wear-resistant solid roller balls for easy and quiet door swinging. The upward and downward linking feature makes installation quick and easy. Virtually invisible after installation, they do not affect the original style of your door. Suitable for swinging cabinet doors, closet doors, cupboard doors, folding flip-up windows made of wood and alloy., Manufacturer: Shun Yingtong