Item Type: Double Action Spring Hinge Material: Stainless Steel Gross Weight: 568g / 20.0oz Color: Black Product Size: 9.2x6.7x2.5cm / 3.6x2.6x1.0in Installation Reserved Aperture: More than 10mm / 0.4in Surface Treatment: Black Nickel Plated Applicable Life: Open and Close More Than 30,000 Times Scope of Application: Cabinets, Wardrobe Doors, Cupboard Doors, Flip Down Doors, etc. 1Durable Materials: Double action spring hinges are made of premium stainless steel, which is compact and durable, hard and reliable, with long service life. 2Applications: This double action spring hinge is suitable for free door, bar door, cabinets, wardrobe doors, cupboard doors, flip down doors, etc. 3Double Action: The double action spring hinges allow you to push a door to both ways and will provide the desired closing speed for a variety of swinging door applications. 4Black Nickel Plated: Multi layer processing, black nickel plated surface, no rust, easy to carry, corrosion resistance. This automatic gate spring hinge has exquisite workmanship. 5Accompanying Tool: The set includes screws and adjustment tool, you can install them depending on your needs. Easy and effortless installation.2 xDouble Action Spring Hinge 16 x Screw 1 xIron Rod