Silent CloseThere is no Bang when you open or close the door of the furniture. The silent closing design protect your fingers from catching in the cupboard, and cupboard door hinges is noiseless when the door moves. 90 DegreeThe opening angle is 90 degree.When you open the door, the kitchen hinges allow the doors to softly quickly release. Suitable for less than 15mm side panel. Easy InstallationThe kitchen cabinet hinges come with screws, so you do not need to buy screws in another way. It is simple to complete the installation with screws driver. Anti-rustThis cupboard hinges is made of solid cold-rolled steel, double-plated Zinc, better anti-rust properties and long life over 50000 times. Durable construction,strong and robust steel hinges. Wide ApplicationThis concealed hinges can be used as kitchen cupboard hinges,wardrobe door hinges, cabinet door hinges,bathroom cabinet hinges, etc. This Silent close door hinge is suitable for the doors used in homes, hotels, restaurant, clubs, schools, office buildings, hospitals, public toilets, etc. But it only works for wooden doors.