Easy installation of cabinet hinges: The door hinges are easy to install with the included stainless steel screws. You don't need to buy any extra tools to drill a hole in the shelf; you just need to use a screwdriver to install the hinges. (Our hinges fit frameless cabinets. They do not work on framed cabinets.) Soft closing: Hidden furniture hinges with an invisible spring offer a 90-degree opening angle. There will be no \"bang\" when you open or close the cabinet door. The cabinet door hinges are quiet when the door moves. Durable material: The kitchen hinges are made of cold-rolled steel and surface-treated with nickel, resistant to oxidation, corrosion, and rust, ensuring a long lifespan. Application: Hidden furniture hinges are widely used in various types of cabinets, wardrobes, bookshelves, and all types of wooden doors and drawers. You can even use them to create a pet cage or a small wine cabinet/TV cabinet. Package contents: Includes 10 x 4-inch cabinet hinges and screws. You no longer need to buy extra screws. Fully meets your installation needs.