They are flexible and do not makes a sound when you open / close the door Make from Iron, High hardness, not easy to deforms and rusts Our hinges can be used on various cabinets in your home, such as kitchen cabinets, wardrobes Cabinet door insets hinges fit your styles of cabinet pull and will lift appeal of your cabinets These closing hinges could automatically close your door under 30 degree, Manufacturer: Oxxggkao